drivers/scsi/qla2xxx/qla_isr.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic Fibre Channel HBA Driver
   4  * Copyright (c)  2003-2014 QLogic Corporation
   5  */
   6 #include "qla_def.h"
   7 #include "qla_target.h"
   8 #include "qla_gbl.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/cpu.h>
  13 #include <linux/t10-pi.h>
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsi_bsg_fc.h>
  16 #include <scsi/scsi_eh.h>
  17 #include <scsi/fc/fc_fs.h>
  18 #include <linux/nvme-fc-driver.h>
  19
  20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  24         sts_entry_t *);
  25 static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
  26         struct purex_item *item);
  27 static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
  28         uint16_t size);
  29 static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
  30         void *pkt);
  31 static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
  32         void **pkt, struct rsp_que **rsp);
  33
  34 static void
  35 qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
  36 {
  37         void *pkt = &item->iocb;
  38         uint16_t pkt_size = item->size;
  39
  40         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
  41                "%s: Enter\n", __func__);
  42
  43         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
  44                "-------- ELS REQ -------\n");
  45         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
  46                        pkt, pkt_size);
  47
  48         fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt, 0);
  49 }
  50
  51 const char *const port_state_str[] = {
  52         [FCS_UNKNOWN]           = "Unknown",
  53         [FCS_UNCONFIGURED]      = "UNCONFIGURED",
  54         [FCS_DEVICE_DEAD]       = "DEAD",
  55         [FCS_DEVICE_LOST]       = "LOST",
  56         [FCS_ONLINE]            = "ONLINE"
  57 };
  58
  59 static void
  60 qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
  61 {
  62         struct abts_entry_24xx *abts =
  63             (struct abts_entry_24xx *)&pkt->iocb;
  64         struct qla_hw_data *ha = vha->hw;
  65         struct els_entry_24xx *rsp_els;
  66         struct abts_entry_24xx *abts_rsp;
  67         dma_addr_t dma;
  68         uint32_t fctl;
  69         int rval;
  70
  71         ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  72
  73         ql_log(ql_log_warn, vha, 0x0287,
  74             "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  75             abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  76             abts->seq_id, abts->seq_cnt);
  77         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  78             "-------- ABTS RCV -------\n");
  79         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  80             (uint8_t *)abts, sizeof(*abts));
  81
  82         rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  83             GFP_KERNEL);
  84         if (!rsp_els) {
  85                 ql_log(ql_log_warn, vha, 0x0287,
  86                     "Failed allocate dma buffer ABTS/ELS RSP.\n");
  87                 return;
  88         }
  89
  90         /* terminate exchange */
  91         rsp_els->entry_type = ELS_IOCB_TYPE;
  92         rsp_els->entry_count = 1;
  93         rsp_els->nport_handle = cpu_to_le16(~0);
  94         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  95         rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
  96         ql_dbg(ql_dbg_init, vha, 0x0283,
  97             "Sending ELS Response to terminate exchange %#x...\n",
  98             abts->rx_xch_addr_to_abort);
  99         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 100             "-------- ELS RSP -------\n");
 101         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 102             (uint8_t *)rsp_els, sizeof(*rsp_els));
 103         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 104         if (rval) {
 105                 ql_log(ql_log_warn, vha, 0x0288,
 106                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 107         } else if (rsp_els->comp_status) {
 108                 ql_log(ql_log_warn, vha, 0x0289,
 109                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 110                     __func__, rsp_els->comp_status,
 111                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 112         } else {
 113                 ql_dbg(ql_dbg_init, vha, 0x028a,
 114                     "%s: abort exchange done.\n", __func__);
 115         }
 116
 117         /* send ABTS response */
 118         abts_rsp = (void *)rsp_els;
 119         memset(abts_rsp, 0, sizeof(*abts_rsp));
 120         abts_rsp->entry_type = ABTS_RSP_TYPE;
 121         abts_rsp->entry_count = 1;
 122         abts_rsp->nport_handle = abts->nport_handle;
 123         abts_rsp->vp_idx = abts->vp_idx;
 124         abts_rsp->sof_type = abts->sof_type & 0xf0;
 125         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 126         abts_rsp->d_id[0] = abts->s_id[0];
 127         abts_rsp->d_id[1] = abts->s_id[1];
 128         abts_rsp->d_id[2] = abts->s_id[2];
 129         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 130         abts_rsp->s_id[0] = abts->d_id[0];
 131         abts_rsp->s_id[1] = abts->d_id[1];
 132         abts_rsp->s_id[2] = abts->d_id[2];
 133         abts_rsp->cs_ctl = abts->cs_ctl;
 134         /* include flipping bit23 in fctl */
 135         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 136             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 137         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 138         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 139         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 140         abts_rsp->type = FC_TYPE_BLD;
 141         abts_rsp->rx_id = abts->rx_id;
 142         abts_rsp->ox_id = abts->ox_id;
 143         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 144         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 145         abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 146         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 147         ql_dbg(ql_dbg_init, vha, 0x028b,
 148             "Sending BA ACC response to ABTS %#x...\n",
 149             abts->rx_xch_addr_to_abort);
 150         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 151             "-------- ELS RSP -------\n");
 152         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 153             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 154         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 155         if (rval) {
 156                 ql_log(ql_log_warn, vha, 0x028c,
 157                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 158         } else if (abts_rsp->comp_status) {
 159                 ql_log(ql_log_warn, vha, 0x028d,
 160                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 161                     __func__, abts_rsp->comp_status,
 162                     abts_rsp->payload.error.subcode1,
 163                     abts_rsp->payload.error.subcode2);
 164         } else {
 165                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 166                     "%s: done.\n", __func__);
 167         }
 168
 169         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 170 }
 171
 172 /**
 173  * __qla_consume_iocb - this routine is used to tell fw driver has processed
 174  *   or consumed the head IOCB along with the continuation IOCB's from the
 175  *   provided respond queue.
 176  * @vha: host adapter pointer
 177  * @pkt: pointer to current packet.  On return, this pointer shall move
 178  *       to the next packet.
 179  * @rsp: respond queue pointer.
 180  *
 181  * it is assumed pkt is the head iocb, not the continuation iocbk
 182  */
 183 void __qla_consume_iocb(struct scsi_qla_host *vha,
 184         void **pkt, struct rsp_que **rsp)
 185 {
 186         struct rsp_que *rsp_q = *rsp;
 187         response_t *new_pkt;
 188         uint16_t entry_count_remaining;
 189         struct purex_entry_24xx *purex = *pkt;
 190
 191         entry_count_remaining = purex->entry_count;
 192         while (entry_count_remaining > 0) {
 193                 new_pkt = rsp_q->ring_ptr;
 194                 *pkt = new_pkt;
 195
 196                 rsp_q->ring_index++;
 197                 if (rsp_q->ring_index == rsp_q->length) {
 198                         rsp_q->ring_index = 0;
 199                         rsp_q->ring_ptr = rsp_q->ring;
 200                 } else {
 201                         rsp_q->ring_ptr++;
 202                 }
 203
 204                 new_pkt->signature = RESPONSE_PROCESSED;
 205                 /* flush signature */
 206                 wmb();
 207                 --entry_count_remaining;
 208         }
 209 }
 210
 211 /**
 212  * __qla_copy_purex_to_buffer - extract ELS payload from Purex IOCB
 213  *    and save to provided buffer
 214  * @vha: host adapter pointer
 215  * @pkt: pointer Purex IOCB
 216  * @rsp: respond queue
 217  * @buf: extracted ELS payload copy here
 218  * @buf_len: buffer length
 219  */
 220 int __qla_copy_purex_to_buffer(struct scsi_qla_host *vha,
 221         void **pkt, struct rsp_que **rsp, u8 *buf, u32 buf_len)
 222 {
 223         struct purex_entry_24xx *purex = *pkt;
 224         struct rsp_que *rsp_q = *rsp;
 225         sts_cont_entry_t *new_pkt;
 226         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 227         uint16_t buffer_copy_offset = 0;
 228         uint16_t entry_count_remaining;
 229         u16 tpad;
 230
 231         entry_count_remaining = purex->entry_count;
 232         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 233                 - PURX_ELS_HEADER_SIZE;
 234
 235         /*
 236          * end of payload may not end in 4bytes boundary.  Need to
 237          * round up / pad for room to swap, before saving data
 238          */
 239         tpad = roundup(total_bytes, 4);
 240
 241         if (buf_len < tpad) {
 242                 ql_dbg(ql_dbg_async, vha, 0x5084,
 243                     "%s buffer is too small %d < %d\n",
 244                     __func__, buf_len, tpad);
 245                 __qla_consume_iocb(vha, pkt, rsp);
 246                 return -EIO;
 247         }
 248
 249         pending_bytes = total_bytes = tpad;
 250         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
 251             sizeof(purex->els_frame_payload) : pending_bytes;
 252
 253         memcpy(buf, &purex->els_frame_payload[0], no_bytes);
 254         buffer_copy_offset += no_bytes;
 255         pending_bytes -= no_bytes;
 256         --entry_count_remaining;
 257
 258         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 259         /* flush signature */
 260         wmb();
 261
 262         do {
 263                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 264                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 265                         *pkt = new_pkt;
 266
 267                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 268                                 ql_log(ql_log_warn, vha, 0x507a,
 269                                     "Unexpected IOCB type, partial data 0x%x\n",
 270                                     buffer_copy_offset);
 271                                 break;
 272                         }
 273
 274                         rsp_q->ring_index++;
 275                         if (rsp_q->ring_index == rsp_q->length) {
 276                                 rsp_q->ring_index = 0;
 277                                 rsp_q->ring_ptr = rsp_q->ring;
 278                         } else {
 279                                 rsp_q->ring_ptr++;
 280                         }
 281                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 282                             sizeof(new_pkt->data) : pending_bytes;
 283                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 284                                 memcpy((buf + buffer_copy_offset), new_pkt->data,
 285                                     no_bytes);
 286                                 buffer_copy_offset += no_bytes;
 287                                 pending_bytes -= no_bytes;
 288                                 --entry_count_remaining;
 289                         } else {
 290                                 ql_log(ql_log_warn, vha, 0x5044,
 291                                     "Attempt to copy more that we got, optimizing..%x\n",
 292                                     buffer_copy_offset);
 293                                 memcpy((buf + buffer_copy_offset), new_pkt->data,
 294                                     total_bytes - buffer_copy_offset);
 295                         }
 296
 297                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 298                         /* flush signature */
 299                         wmb();
 300                 }
 301
 302                 if (pending_bytes != 0 || entry_count_remaining != 0) {
 303                         ql_log(ql_log_fatal, vha, 0x508b,
 304                             "Dropping partial Data, underrun bytes = 0x%x, entry cnts 0x%x\n",
 305                             total_bytes, entry_count_remaining);
 306                         return -EIO;
 307                 }
 308         } while (entry_count_remaining > 0);
 309
 310         be32_to_cpu_array((u32 *)buf, (__be32 *)buf, total_bytes >> 2);
 311
 312         return 0;
 313 }
 314
 315 /**
 316  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 317  * @irq: interrupt number
 318  * @dev_id: SCSI driver HA context
 319  *
 320  * Called by system whenever the host adapter generates an interrupt.
 321  *
 322  * Returns handled flag.
 323  */
 324 irqreturn_t
 325 qla2100_intr_handler(int irq, void *dev_id)
 326 {
 327         scsi_qla_host_t *vha;
 328         struct qla_hw_data *ha;
 329         struct device_reg_2xxx __iomem *reg;
 330         int             status;
 331         unsigned long   iter;
 332         uint16_t        hccr;
 333         uint16_t        mb[8];
 334         struct rsp_que *rsp;
 335         unsigned long   flags;
 336
 337         rsp = (struct rsp_que *) dev_id;
 338         if (!rsp) {
 339                 ql_log(ql_log_info, NULL, 0x505d,
 340                     "%s: NULL response queue pointer.\n", __func__);
 341                 return (IRQ_NONE);
 342         }
 343
 344         ha = rsp->hw;
 345         reg = &ha->iobase->isp;
 346         status = 0;
 347
 348         spin_lock_irqsave(&ha->hardware_lock, flags);
 349         vha = pci_get_drvdata(ha->pdev);
 350         for (iter = 50; iter--; ) {
 351                 hccr = rd_reg_word(&reg->hccr);
 352                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 353                         break;
 354                 if (hccr & HCCR_RISC_PAUSE) {
 355                         if (pci_channel_offline(ha->pdev))
 356                                 break;
 357
 358                         /*
 359                          * Issue a "HARD" reset in order for the RISC interrupt
 360                          * bit to be cleared.  Schedule a big hammer to get
 361                          * out of the RISC PAUSED state.
 362                          */
 363                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 364                         rd_reg_word(&reg->hccr);
 365
 366                         ha->isp_ops->fw_dump(vha);
 367                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 368                         break;
 369                 } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 370                         break;
 371
 372                 if (rd_reg_word(&reg->semaphore) & BIT_0) {
 373                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 374                         rd_reg_word(&reg->hccr);
 375
 376                         /* Get mailbox data. */
 377                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 378                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 379                                 qla2x00_mbx_completion(vha, mb[0]);
 380                                 status |= MBX_INTERRUPT;
 381                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 382                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 383                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 384                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 385                                 qla2x00_async_event(vha, rsp, mb);
 386                         } else {
 387                                 /*EMPTY*/
 388                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 389                                     "Unrecognized interrupt type (%d).\n",
 390                                     mb[0]);
 391                         }
 392                         /* Release mailbox registers. */
 393                         wrt_reg_word(&reg->semaphore, 0);
 394                         rd_reg_word(&reg->semaphore);
 395                 } else {
 396                         qla2x00_process_response_queue(rsp);
 397
 398                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 399                         rd_reg_word(&reg->hccr);
 400                 }
 401         }
 402         qla2x00_handle_mbx_completion(ha, status);
 403         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 404
 405         return (IRQ_HANDLED);
 406 }
 407
 408 bool
 409 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 410 {
 411         /* Check for PCI disconnection */
 412         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 413                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 414                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 415                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 416                         qla_schedule_eeh_work(vha);
 417                 }
 418                 return true;
 419         } else
 420                 return false;
 421 }
 422
 423 bool
 424 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 425 {
 426         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 427 }
 428
 429 /**
 430  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 431  * @irq: interrupt number
 432  * @dev_id: SCSI driver HA context
 433  *
 434  * Called by system whenever the host adapter generates an interrupt.
 435  *
 436  * Returns handled flag.
 437  */
 438 irqreturn_t
 439 qla2300_intr_handler(int irq, void *dev_id)
 440 {
 441         scsi_qla_host_t *vha;
 442         struct device_reg_2xxx __iomem *reg;
 443         int             status;
 444         unsigned long   iter;
 445         uint32_t        stat;
 446         uint16_t        hccr;
 447         uint16_t        mb[8];
 448         struct rsp_que *rsp;
 449         struct qla_hw_data *ha;
 450         unsigned long   flags;
 451
 452         rsp = (struct rsp_que *) dev_id;
 453         if (!rsp) {
 454                 ql_log(ql_log_info, NULL, 0x5058,
 455                     "%s: NULL response queue pointer.\n", __func__);
 456                 return (IRQ_NONE);
 457         }
 458
 459         ha = rsp->hw;
 460         reg = &ha->iobase->isp;
 461         status = 0;
 462
 463         spin_lock_irqsave(&ha->hardware_lock, flags);
 464         vha = pci_get_drvdata(ha->pdev);
 465         for (iter = 50; iter--; ) {
 466                 stat = rd_reg_dword(&reg->u.isp2300.host_status);
 467                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 468                         break;
 469                 if (stat & HSR_RISC_PAUSED) {
 470                         if (unlikely(pci_channel_offline(ha->pdev)))
 471                                 break;
 472
 473                         hccr = rd_reg_word(&reg->hccr);
 474
 475                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 476                                 ql_log(ql_log_warn, vha, 0x5026,
 477                                     "Parity error -- HCCR=%x, Dumping "
 478                                     "firmware.\n", hccr);
 479                         else
 480                                 ql_log(ql_log_warn, vha, 0x5027,
 481                                     "RISC paused -- HCCR=%x, Dumping "
 482                                     "firmware.\n", hccr);
 483
 484                         /*
 485                          * Issue a "HARD" reset in order for the RISC
 486                          * interrupt bit to be cleared.  Schedule a big
 487                          * hammer to get out of the RISC PAUSED state.
 488                          */
 489                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 490                         rd_reg_word(&reg->hccr);
 491
 492                         ha->isp_ops->fw_dump(vha);
 493                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 494                         break;
 495                 } else if ((stat & HSR_RISC_INT) == 0)
 496                         break;
 497
 498                 switch (stat & 0xff) {
 499                 case 0x1:
 500                 case 0x2:
 501                 case 0x10:
 502                 case 0x11:
 503                         qla2x00_mbx_completion(vha, MSW(stat));
 504                         status |= MBX_INTERRUPT;
 505
 506                         /* Release mailbox registers. */
 507                         wrt_reg_word(&reg->semaphore, 0);
 508                         break;
 509                 case 0x12:
 510                         mb[0] = MSW(stat);
 511                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 512                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 513                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 514                         qla2x00_async_event(vha, rsp, mb);
 515                         break;
 516                 case 0x13:
 517                         qla2x00_process_response_queue(rsp);
 518                         break;
 519                 case 0x15:
 520                         mb[0] = MBA_CMPLT_1_16BIT;
 521                         mb[1] = MSW(stat);
 522                         qla2x00_async_event(vha, rsp, mb);
 523                         break;
 524                 case 0x16:
 525                         mb[0] = MBA_SCSI_COMPLETION;
 526                         mb[1] = MSW(stat);
 527                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 528                         qla2x00_async_event(vha, rsp, mb);
 529                         break;
 530                 default:
 531                         ql_dbg(ql_dbg_async, vha, 0x5028,
 532                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 533                         break;
 534                 }
 535                 wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 536                 rd_reg_word_relaxed(&reg->hccr);
 537         }
 538         qla2x00_handle_mbx_completion(ha, status);
 539         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 540
 541         return (IRQ_HANDLED);
 542 }
 543
 544 /**
 545  * qla2x00_mbx_completion() - Process mailbox command completions.
 546  * @vha: SCSI driver HA context
 547  * @mb0: Mailbox0 register
 548  */
 549 static void
 550 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 551 {
 552         uint16_t        cnt;
 553         uint32_t        mboxes;
 554         __le16 __iomem *wptr;
 555         struct qla_hw_data *ha = vha->hw;
 556         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 557
 558         /* Read all mbox registers? */
 559         WARN_ON_ONCE(ha->mbx_count > 32);
 560         mboxes = (1ULL << ha->mbx_count) - 1;
 561         if (!ha->mcp)
 562                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 563         else
 564                 mboxes = ha->mcp->in_mb;
 565
 566         /* Load return mailbox registers. */
 567         ha->flags.mbox_int = 1;
 568         ha->mailbox_out[0] = mb0;
 569         mboxes >>= 1;
 570         wptr = MAILBOX_REG(ha, reg, 1);
 571
 572         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 573                 if (IS_QLA2200(ha) && cnt == 8)
 574                         wptr = MAILBOX_REG(ha, reg, 8);
 575                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 576                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 577                 else if (mboxes & BIT_0)
 578                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
 579
 580                 wptr++;
 581                 mboxes >>= 1;
 582         }
 583 }
 584
 585 static void
 586 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 587 {
 588         static char *event[] =
 589                 { "Complete", "Request Notification", "Time Extension" };
 590         int rval;
 591         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 592         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 593         __le16 __iomem *wptr;
 594         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 595
 596         /* Seed data -- mailbox1 -> mailbox7. */
 597         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 598                 wptr = &reg24->mailbox1;
 599         else if (IS_QLA8044(vha->hw))
 600                 wptr = &reg82->mailbox_out[1];
 601         else
 602                 return;
 603
 604         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 605                 mb[cnt] = rd_reg_word(wptr);
 606
 607         ql_dbg(ql_dbg_async, vha, 0x5021,
 608             "Inter-Driver Communication %s -- "
 609             "%04x %04x %04x %04x %04x %04x %04x.\n",
 610             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 611             mb[4], mb[5], mb[6]);
 612         switch (aen) {
 613         /* Handle IDC Error completion case. */
 614         case MBA_IDC_COMPLETE:
 615                 if (mb[1] >> 15) {
 616                         vha->hw->flags.idc_compl_status = 1;
 617                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 618                                 complete(&vha->hw->dcbx_comp);
 619                 }
 620                 break;
 621
 622         case MBA_IDC_NOTIFY:
 623                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 624                 timeout = (descr >> 8) & 0xf;
 625                 ql_dbg(ql_dbg_async, vha, 0x5022,
 626                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 627                     vha->host_no, event[aen & 0xff], timeout);
 628
 629                 if (!timeout)
 630                         return;
 631                 rval = qla2x00_post_idc_ack_work(vha, mb);
 632                 if (rval != QLA_SUCCESS)
 633                         ql_log(ql_log_warn, vha, 0x5023,
 634                             "IDC failed to post ACK.\n");
 635                 break;
 636         case MBA_IDC_TIME_EXT:
 637                 vha->hw->idc_extend_tmo = descr;
 638                 ql_dbg(ql_dbg_async, vha, 0x5087,
 639                     "%lu Inter-Driver Communication %s -- "
 640                     "Extend timeout by=%d.\n",
 641                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 642                 break;
 643         }
 644 }
 645
 646 #define LS_UNKNOWN      2
 647 const char *
 648 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 649 {
 650         static const char *const link_speeds[] = {
 651                 "1", "2", "?", "4", "8", "16", "32", "64", "10"
 652         };
 653 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 654
 655         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 656                 return link_speeds[0];
 657         else if (speed == 0x13)
 658                 return link_speeds[QLA_LAST_SPEED];
 659         else if (speed < QLA_LAST_SPEED)
 660                 return link_speeds[speed];
 661         else
 662                 return link_speeds[LS_UNKNOWN];
 663 }
 664
 665 static void
 666 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 667 {
 668         struct qla_hw_data *ha = vha->hw;
 669
 670         /*
 671          * 8200 AEN Interpretation:
 672          * mb[0] = AEN code
 673          * mb[1] = AEN Reason code
 674          * mb[2] = LSW of Peg-Halt Status-1 Register
 675          * mb[6] = MSW of Peg-Halt Status-1 Register
 676          * mb[3] = LSW of Peg-Halt Status-2 register
 677          * mb[7] = MSW of Peg-Halt Status-2 register
 678          * mb[4] = IDC Device-State Register value
 679          * mb[5] = IDC Driver-Presence Register value
 680          */
 681         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 682             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 683             mb[0], mb[1], mb[2], mb[6]);
 684         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 685             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 686             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 687
 688         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 689                                 IDC_HEARTBEAT_FAILURE)) {
 690                 ha->flags.nic_core_hung = 1;
 691                 ql_log(ql_log_warn, vha, 0x5060,
 692                     "83XX: F/W Error Reported: Check if reset required.\n");
 693
 694                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 695                         uint32_t protocol_engine_id, fw_err_code, err_level;
 696
 697                         /*
 698                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 699                          *  - PEG-Halt Status-1 Register:
 700                          *      (LSW = mb[2], MSW = mb[6])
 701                          *      Bits 0-7   = protocol-engine ID
 702                          *      Bits 8-28  = f/w error code
 703                          *      Bits 29-31 = Error-level
 704                          *          Error-level 0x1 = Non-Fatal error
 705                          *          Error-level 0x2 = Recoverable Fatal error
 706                          *          Error-level 0x4 = UnRecoverable Fatal error
 707                          *  - PEG-Halt Status-2 Register:
 708                          *      (LSW = mb[3], MSW = mb[7])
 709                          */
 710                         protocol_engine_id = (mb[2] & 0xff);
 711                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 712                             ((mb[6] & 0x1fff) << 8));
 713                         err_level = ((mb[6] & 0xe000) >> 13);
 714                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 715                             "Register: protocol_engine_id=0x%x "
 716                             "fw_err_code=0x%x err_level=0x%x.\n",
 717                             protocol_engine_id, fw_err_code, err_level);
 718                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 719                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 720                         if (err_level == ERR_LEVEL_NON_FATAL) {
 721                                 ql_log(ql_log_warn, vha, 0x5063,
 722                                     "Not a fatal error, f/w has recovered itself.\n");
 723                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 724                                 ql_log(ql_log_fatal, vha, 0x5064,
 725                                     "Recoverable Fatal error: Chip reset "
 726                                     "required.\n");
 727                                 qla83xx_schedule_work(vha,
 728                                     QLA83XX_NIC_CORE_RESET);
 729                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 730                                 ql_log(ql_log_fatal, vha, 0x5065,
 731                                     "Unrecoverable Fatal error: Set FAILED "
 732                                     "state, reboot required.\n");
 733                                 qla83xx_schedule_work(vha,
 734                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 735                         }
 736                 }
 737
 738                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 739                         uint16_t peg_fw_state, nw_interface_link_up;
 740                         uint16_t nw_interface_signal_detect, sfp_status;
 741                         uint16_t htbt_counter, htbt_monitor_enable;
 742                         uint16_t sfp_additional_info, sfp_multirate;
 743                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 744
 745                         /*
 746                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 747                          *  - PEG-to-FC Status Register:
 748                          *      (LSW = mb[2], MSW = mb[6])
 749                          *      Bits 0-7   = Peg-Firmware state
 750                          *      Bit 8      = N/W Interface Link-up
 751                          *      Bit 9      = N/W Interface signal detected
 752                          *      Bits 10-11 = SFP Status
 753                          *        SFP Status 0x0 = SFP+ transceiver not expected
 754                          *        SFP Status 0x1 = SFP+ transceiver not present
 755                          *        SFP Status 0x2 = SFP+ transceiver invalid
 756                          *        SFP Status 0x3 = SFP+ transceiver present and
 757                          *        valid
 758                          *      Bits 12-14 = Heartbeat Counter
 759                          *      Bit 15     = Heartbeat Monitor Enable
 760                          *      Bits 16-17 = SFP Additional Info
 761                          *        SFP info 0x0 = Unregocnized transceiver for
 762                          *        Ethernet
 763                          *        SFP info 0x1 = SFP+ brand validation failed
 764                          *        SFP info 0x2 = SFP+ speed validation failed
 765                          *        SFP info 0x3 = SFP+ access error
 766                          *      Bit 18     = SFP Multirate
 767                          *      Bit 19     = SFP Tx Fault
 768                          *      Bits 20-22 = Link Speed
 769                          *      Bits 23-27 = Reserved
 770                          *      Bits 28-30 = DCBX Status
 771                          *        DCBX Status 0x0 = DCBX Disabled
 772                          *        DCBX Status 0x1 = DCBX Enabled
 773                          *        DCBX Status 0x2 = DCBX Exchange error
 774                          *      Bit 31     = Reserved
 775                          */
 776                         peg_fw_state = (mb[2] & 0x00ff);
 777                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 778                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 779                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 780                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 781                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 782                         sfp_additional_info = (mb[6] & 0x0003);
 783                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 784                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 785                         link_speed = ((mb[6] & 0x0070) >> 4);
 786                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 787
 788                         ql_log(ql_log_warn, vha, 0x5066,
 789                             "Peg-to-Fc Status Register:\n"
 790                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 791                             "nw_interface_signal_detect=0x%x"
 792                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 793                             nw_interface_link_up, nw_interface_signal_detect,
 794                             sfp_status);
 795                         ql_log(ql_log_warn, vha, 0x5067,
 796                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 797                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 798                             htbt_counter, htbt_monitor_enable,
 799                             sfp_additional_info, sfp_multirate);
 800                         ql_log(ql_log_warn, vha, 0x5068,
 801                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 802                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 803                             dcbx_status);
 804
 805                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 806                 }
 807
 808                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 809                         ql_log(ql_log_warn, vha, 0x5069,
 810                             "Heartbeat Failure encountered, chip reset "
 811                             "required.\n");
 812
 813                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 814                 }
 815         }
 816
 817         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 818                 ql_log(ql_log_info, vha, 0x506a,
 819                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 820                 if (ha->flags.nic_core_reset_owner)
 821                         return;
 822                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 823         }
 824 }
 825
 826 int
 827 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 828 {
 829         struct qla_hw_data *ha = vha->hw;
 830         scsi_qla_host_t *vp;
 831         uint32_t vp_did;
 832         unsigned long flags;
 833         int ret = 0;
 834
 835         if (!ha->num_vhosts)
 836                 return ret;
 837
 838         spin_lock_irqsave(&ha->vport_slock, flags);
 839         list_for_each_entry(vp, &ha->vp_list, list) {
 840                 vp_did = vp->d_id.b24;
 841                 if (vp_did == rscn_entry) {
 842                         ret = 1;
 843                         break;
 844                 }
 845         }
 846         spin_unlock_irqrestore(&ha->vport_slock, flags);
 847
 848         return ret;
 849 }
 850
 851 fc_port_t *
 852 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 853 {
 854         fc_port_t *f, *tf;
 855
 856         f = tf = NULL;
 857         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 858                 if (f->loop_id == loop_id)
 859                         return f;
 860         return NULL;
 861 }
 862
 863 fc_port_t *
 864 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 865 {
 866         fc_port_t *f, *tf;
 867
 868         f = tf = NULL;
 869         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 870                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 871                         if (incl_deleted)
 872                                 return f;
 873                         else if (f->deleted == 0)
 874                                 return f;
 875                 }
 876         }
 877         return NULL;
 878 }
 879
 880 fc_port_t *
 881 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 882         u8 incl_deleted)
 883 {
 884         fc_port_t *f, *tf;
 885
 886         f = tf = NULL;
 887         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 888                 if (f->d_id.b24 == id->b24) {
 889                         if (incl_deleted)
 890                                 return f;
 891                         else if (f->deleted == 0)
 892                                 return f;
 893                 }
 894         }
 895         return NULL;
 896 }
 897
 898 /* Shall be called only on supported adapters. */
 899 static void
 900 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 901 {
 902         struct qla_hw_data *ha = vha->hw;
 903         bool reset_isp_needed = false;
 904
 905         ql_log(ql_log_warn, vha, 0x02f0,
 906                "MPI Heartbeat stop. MPI reset is%s needed. "
 907                "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
 908                mb[1] & BIT_8 ? "" : " not",
 909                mb[0], mb[1], mb[2], mb[3]);
 910
 911         if ((mb[1] & BIT_8) == 0)
 912                 return;
 913
 914         ql_log(ql_log_warn, vha, 0x02f1,
 915                "MPI Heartbeat stop. FW dump needed\n");
 916
 917         if (ql2xfulldump_on_mpifail) {
 918                 ha->isp_ops->fw_dump(vha);
 919                 reset_isp_needed = true;
 920         }
 921
 922         ha->isp_ops->mpi_fw_dump(vha, 1);
 923
 924         if (reset_isp_needed) {
 925                 vha->hw->flags.fw_init_done = 0;
 926                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 927                 qla2xxx_wake_dpc(vha);
 928         }
 929 }
 930
 931 static struct purex_item *
 932 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
 933 {
 934         struct purex_item *item = NULL;
 935         uint8_t item_hdr_size = sizeof(*item);
 936
 937         if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
 938                 item = kzalloc(item_hdr_size +
 939                     (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
 940         } else {
 941                 if (atomic_inc_return(&vha->default_item.in_use) == 1) {
 942                         item = &vha->default_item;
 943                         goto initialize_purex_header;
 944                 } else {
 945                         item = kzalloc(item_hdr_size, GFP_ATOMIC);
 946                 }
 947         }
 948         if (!item) {
 949                 ql_log(ql_log_warn, vha, 0x5092,
 950                        ">> Failed allocate purex list item.\n");
 951
 952                 return NULL;
 953         }
 954
 955 initialize_purex_header:
 956         item->vha = vha;
 957         item->size = size;
 958         return item;
 959 }
 960
 961 static void
 962 qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
 963                          void (*process_item)(struct scsi_qla_host *vha,
 964                                               struct purex_item *pkt))
 965 {
 966         struct purex_list *list = &vha->purex_list;
 967         ulong flags;
 968
 969         pkt->process_item = process_item;
 970
 971         spin_lock_irqsave(&list->lock, flags);
 972         list_add_tail(&pkt->list, &list->head);
 973         spin_unlock_irqrestore(&list->lock, flags);
 974
 975         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
 976 }
 977
 978 /**
 979  * qla24xx_copy_std_pkt() - Copy over purex ELS which is
 980  * contained in a single IOCB.
 981  * purex packet.
 982  * @vha: SCSI driver HA context
 983  * @pkt: ELS packet
 984  */
 985 static struct purex_item
 986 *qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
 987 {
 988         struct purex_item *item;
 989
 990         item = qla24xx_alloc_purex_item(vha,
 991                                         QLA_DEFAULT_PAYLOAD_SIZE);
 992         if (!item)
 993                 return item;
 994
 995         memcpy(&item->iocb, pkt, sizeof(item->iocb));
 996         return item;
 997 }
 998
 999 /**
1000  * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
1001  * span over multiple IOCBs.
1002  * @vha: SCSI driver HA context
1003  * @pkt: ELS packet
1004  * @rsp: Response queue
1005  */
1006 static struct purex_item *
1007 qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
1008                       struct rsp_que **rsp)
1009 {
1010         struct purex_entry_24xx *purex = *pkt;
1011         struct rsp_que *rsp_q = *rsp;
1012         sts_cont_entry_t *new_pkt;
1013         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
1014         uint16_t buffer_copy_offset = 0;
1015         uint16_t entry_count, entry_count_remaining;
1016         struct purex_item *item;
1017         void *fpin_pkt = NULL;
1018
1019         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
1020             - PURX_ELS_HEADER_SIZE;
1021         pending_bytes = total_bytes;
1022         entry_count = entry_count_remaining = purex->entry_count;
1023         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
1024                    sizeof(purex->els_frame_payload) : pending_bytes;
1025         ql_log(ql_log_info, vha, 0x509a,
1026                "FPIN ELS, frame_size 0x%x, entry count %d\n",
1027                total_bytes, entry_count);
1028
1029         item = qla24xx_alloc_purex_item(vha, total_bytes);
1030         if (!item)
1031                 return item;
1032
1033         fpin_pkt = &item->iocb;
1034
1035         memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
1036         buffer_copy_offset += no_bytes;
1037         pending_bytes -= no_bytes;
1038         --entry_count_remaining;
1039
1040         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
1041         wmb();
1042
1043         do {
1044                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
1045                         if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
1046                                 ql_dbg(ql_dbg_async, vha, 0x5084,
1047                                        "Ran out of IOCBs, partial data 0x%x\n",
1048                                        buffer_copy_offset);
1049                                 cpu_relax();
1050                                 continue;
1051                         }
1052
1053                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
1054                         *pkt = new_pkt;
1055
1056                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
1057                                 ql_log(ql_log_warn, vha, 0x507a,
1058                                        "Unexpected IOCB type, partial data 0x%x\n",
1059                                        buffer_copy_offset);
1060                                 break;
1061                         }
1062
1063                         rsp_q->ring_index++;
1064                         if (rsp_q->ring_index == rsp_q->length) {
1065                                 rsp_q->ring_index = 0;
1066                                 rsp_q->ring_ptr = rsp_q->ring;
1067                         } else {
1068                                 rsp_q->ring_ptr++;
1069                         }
1070                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
1071                             sizeof(new_pkt->data) : pending_bytes;
1072                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
1073                                 memcpy(((uint8_t *)fpin_pkt +
1074                                     buffer_copy_offset), new_pkt->data,
1075                                     no_bytes);
1076                                 buffer_copy_offset += no_bytes;
1077                                 pending_bytes -= no_bytes;
1078                                 --entry_count_remaining;
1079                         } else {
1080                                 ql_log(ql_log_warn, vha, 0x5044,
1081                                        "Attempt to copy more that we got, optimizing..%x\n",
1082                                        buffer_copy_offset);
1083                                 memcpy(((uint8_t *)fpin_pkt +
1084                                     buffer_copy_offset), new_pkt->data,
1085                                     total_bytes - buffer_copy_offset);
1086                         }
1087
1088                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
1089                         wmb();
1090                 }
1091
1092                 if (pending_bytes != 0 || entry_count_remaining != 0) {
1093                         ql_log(ql_log_fatal, vha, 0x508b,
1094                                "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
1095                                total_bytes, entry_count_remaining);
1096                         qla24xx_free_purex_item(item);
1097                         return NULL;
1098                 }
1099         } while (entry_count_remaining > 0);
1100         host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
1101         return item;
1102 }
1103
1104 /**
1105  * qla2x00_async_event() - Process aynchronous events.
1106  * @vha: SCSI driver HA context
1107  * @rsp: response queue
1108  * @mb: Mailbox registers (0 - 3)
1109  */
1110 void
1111 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
1112 {
1113         uint16_t        handle_cnt;
1114         uint16_t        cnt, mbx;
1115         uint32_t        handles[5];
1116         struct qla_hw_data *ha = vha->hw;
1117         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1118         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
1119         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1120         uint32_t        rscn_entry, host_pid;
1121         unsigned long   flags;
1122         fc_port_t       *fcport = NULL;
1123
1124         if (!vha->hw->flags.fw_started)
1125                 return;
1126
1127         /* Setup to process RIO completion. */
1128         handle_cnt = 0;
1129         if (IS_CNA_CAPABLE(ha))
1130                 goto skip_rio;
1131         switch (mb[0]) {
1132         case MBA_SCSI_COMPLETION:
1133                 handles[0] = make_handle(mb[2], mb[1]);
1134                 handle_cnt = 1;
1135                 break;
1136         case MBA_CMPLT_1_16BIT:
1137                 handles[0] = mb[1];
1138                 handle_cnt = 1;
1139                 mb[0] = MBA_SCSI_COMPLETION;
1140                 break;
1141         case MBA_CMPLT_2_16BIT:
1142                 handles[0] = mb[1];
1143                 handles[1] = mb[2];
1144                 handle_cnt = 2;
1145                 mb[0] = MBA_SCSI_COMPLETION;
1146                 break;
1147         case MBA_CMPLT_3_16BIT:
1148                 handles[0] = mb[1];
1149                 handles[1] = mb[2];
1150                 handles[2] = mb[3];
1151                 handle_cnt = 3;
1152                 mb[0] = MBA_SCSI_COMPLETION;
1153                 break;
1154         case MBA_CMPLT_4_16BIT:
1155                 handles[0] = mb[1];
1156                 handles[1] = mb[2];
1157                 handles[2] = mb[3];
1158                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1159                 handle_cnt = 4;
1160                 mb[0] = MBA_SCSI_COMPLETION;
1161                 break;
1162         case MBA_CMPLT_5_16BIT:
1163                 handles[0] = mb[1];
1164                 handles[1] = mb[2];
1165                 handles[2] = mb[3];
1166                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1167                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1168                 handle_cnt = 5;
1169                 mb[0] = MBA_SCSI_COMPLETION;
1170                 break;
1171         case MBA_CMPLT_2_32BIT:
1172                 handles[0] = make_handle(mb[2], mb[1]);
1173                 handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1174                                          RD_MAILBOX_REG(ha, reg, 6));
1175                 handle_cnt = 2;
1176                 mb[0] = MBA_SCSI_COMPLETION;
1177                 break;
1178         default:
1179                 break;
1180         }
1181 skip_rio:
1182         switch (mb[0]) {
1183         case MBA_SCSI_COMPLETION:       /* Fast Post */
1184                 if (!vha->flags.online)
1185                         break;
1186
1187                 for (cnt = 0; cnt < handle_cnt; cnt++)
1188                         qla2x00_process_completed_request(vha, rsp->req,
1189                                 handles[cnt]);
1190                 break;
1191
1192         case MBA_RESET:                 /* Reset */
1193                 ql_dbg(ql_dbg_async, vha, 0x5002,
1194                     "Asynchronous RESET.\n");
1195
1196                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1197                 break;
1198
1199         case MBA_SYSTEM_ERR:            /* System Error */
1200                 mbx = 0;
1201
1202                 vha->hw_err_cnt++;
1203
1204                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1205                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1206                         u16 m[4];
1207
1208                         m[0] = rd_reg_word(&reg24->mailbox4);
1209                         m[1] = rd_reg_word(&reg24->mailbox5);
1210                         m[2] = rd_reg_word(&reg24->mailbox6);
1211                         mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1212
1213                         ql_log(ql_log_warn, vha, 0x5003,
1214                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1215                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1216                 } else
1217                         ql_log(ql_log_warn, vha, 0x5003,
1218                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1219                             mb[1], mb[2], mb[3]);
1220
1221                 if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1222                     rd_reg_word(&reg24->mailbox7) & BIT_8)
1223                         ha->isp_ops->mpi_fw_dump(vha, 1);
1224                 ha->isp_ops->fw_dump(vha);
1225                 ha->flags.fw_init_done = 0;
1226                 QLA_FW_STOPPED(ha);
1227
1228                 if (IS_FWI2_CAPABLE(ha)) {
1229                         if (mb[1] == 0 && mb[2] == 0) {
1230                                 ql_log(ql_log_fatal, vha, 0x5004,
1231                                     "Unrecoverable Hardware Error: adapter "
1232                                     "marked OFFLINE!\n");
1233                                 vha->flags.online = 0;
1234                                 vha->device_flags |= DFLG_DEV_FAILED;
1235                         } else {
1236                                 /* Check to see if MPI timeout occurred */
1237                                 if ((mbx & MBX_3) && (ha->port_no == 0))
1238                                         set_bit(MPI_RESET_NEEDED,
1239                                             &vha->dpc_flags);
1240
1241                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1242                         }
1243                 } else if (mb[1] == 0) {
1244                         ql_log(ql_log_fatal, vha, 0x5005,
1245                             "Unrecoverable Hardware Error: adapter marked "
1246                             "OFFLINE!\n");
1247                         vha->flags.online = 0;
1248                         vha->device_flags |= DFLG_DEV_FAILED;
1249                 } else
1250                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1251                 break;
1252
1253         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
1254                 ql_log(ql_log_warn, vha, 0x5006,
1255                     "ISP Request Transfer Error (%x).\n",  mb[1]);
1256
1257                 vha->hw_err_cnt++;
1258
1259                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1260                 break;
1261
1262         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
1263                 ql_log(ql_log_warn, vha, 0x5007,
1264                     "ISP Response Transfer Error (%x).\n", mb[1]);
1265
1266                 vha->hw_err_cnt++;
1267
1268                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1269                 break;
1270
1271         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
1272                 ql_dbg(ql_dbg_async, vha, 0x5008,
1273                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1274                 break;
1275
1276         case MBA_LOOP_INIT_ERR:
1277                 ql_log(ql_log_warn, vha, 0x5090,
1278                     "LOOP INIT ERROR (%x).\n", mb[1]);
1279                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1280                 break;
1281
1282         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
1283                 ha->flags.lip_ae = 1;
1284
1285                 ql_dbg(ql_dbg_async, vha, 0x5009,
1286                     "LIP occurred (%x).\n", mb[1]);
1287
1288                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1289                         atomic_set(&vha->loop_state, LOOP_DOWN);
1290                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1291                         qla2x00_mark_all_devices_lost(vha);
1292                 }
1293
1294                 if (vha->vp_idx) {
1295                         atomic_set(&vha->vp_state, VP_FAILED);
1296                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1297                 }
1298
1299                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1300                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1301
1302                 vha->flags.management_server_logged_in = 0;
1303                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1304                 break;
1305
1306         case MBA_LOOP_UP:               /* Loop Up Event */
1307                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1308                         ha->link_data_rate = PORT_SPEED_1GB;
1309                 else
1310                         ha->link_data_rate = mb[1];
1311
1312                 ql_log(ql_log_info, vha, 0x500a,
1313                     "LOOP UP detected (%s Gbps).\n",
1314                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1315
1316                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1317                         if (mb[2] & BIT_0)
1318                                 ql_log(ql_log_info, vha, 0x11a0,
1319                                     "FEC=enabled (link up).\n");
1320                 }
1321
1322                 vha->flags.management_server_logged_in = 0;
1323                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1324
1325                 if (vha->link_down_time < vha->hw->port_down_retry_count) {
1326                         vha->short_link_down_cnt++;
1327                         vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
1328                 }
1329
1330                 break;
1331
1332         case MBA_LOOP_DOWN:             /* Loop Down Event */
1333                 SAVE_TOPO(ha);
1334                 ha->flags.lip_ae = 0;
1335                 ha->current_topology = 0;
1336                 vha->link_down_time = 0;
1337
1338                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1339                         ? rd_reg_word(&reg24->mailbox4) : 0;
1340                 mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1341                         : mbx;
1342                 ql_log(ql_log_info, vha, 0x500b,
1343                     "LOOP DOWN detected (%x %x %x %x).\n",
1344                     mb[1], mb[2], mb[3], mbx);
1345
1346                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1347                         atomic_set(&vha->loop_state, LOOP_DOWN);
1348                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1349                         /*
1350                          * In case of loop down, restore WWPN from
1351                          * NVRAM in case of FA-WWPN capable ISP
1352                          * Restore for Physical Port only
1353                          */
1354                         if (!vha->vp_idx) {
1355                                 if (ha->flags.fawwpn_enabled &&
1356                                     (ha->current_topology == ISP_CFG_F)) {
1357                                         memcpy(vha->port_name, ha->port_name, WWN_SIZE);
1358                                         fc_host_port_name(vha->host) =
1359                                             wwn_to_u64(vha->port_name);
1360                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1361                                             vha, 0x00d8, "LOOP DOWN detected,"
1362                                             "restore WWPN %016llx\n",
1363                                             wwn_to_u64(vha->port_name));
1364                                 }
1365
1366                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1367                         }
1368
1369                         vha->device_flags |= DFLG_NO_CABLE;
1370                         qla2x00_mark_all_devices_lost(vha);
1371                 }
1372
1373                 if (vha->vp_idx) {
1374                         atomic_set(&vha->vp_state, VP_FAILED);
1375                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1376                 }
1377
1378                 vha->flags.management_server_logged_in = 0;
1379                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1380                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1381                 break;
1382
1383         case MBA_LIP_RESET:             /* LIP reset occurred */
1384                 ql_dbg(ql_dbg_async, vha, 0x500c,
1385                     "LIP reset occurred (%x).\n", mb[1]);
1386
1387                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1388                         atomic_set(&vha->loop_state, LOOP_DOWN);
1389                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1390                         qla2x00_mark_all_devices_lost(vha);
1391                 }
1392
1393                 if (vha->vp_idx) {
1394                         atomic_set(&vha->vp_state, VP_FAILED);
1395                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1396                 }
1397
1398                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1399
1400                 ha->operating_mode = LOOP;
1401                 vha->flags.management_server_logged_in = 0;
1402                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1403                 break;
1404
1405         /* case MBA_DCBX_COMPLETE: */
1406         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1407                 ha->flags.lip_ae = 0;
1408
1409                 if (IS_QLA2100(ha))
1410                         break;
1411
1412                 if (IS_CNA_CAPABLE(ha)) {
1413                         ql_dbg(ql_dbg_async, vha, 0x500d,
1414                             "DCBX Completed -- %04x %04x %04x.\n",
1415                             mb[1], mb[2], mb[3]);
1416                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1417                                 complete(&ha->dcbx_comp);
1418
1419                 } else
1420                         ql_dbg(ql_dbg_async, vha, 0x500e,
1421                             "Asynchronous P2P MODE received.\n");
1422
1423                 /*
1424                  * Until there's a transition from loop down to loop up, treat
1425                  * this as loop down only.
1426                  */
1427                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1428                         atomic_set(&vha->loop_state, LOOP_DOWN);
1429                         if (!atomic_read(&vha->loop_down_timer))
1430                                 atomic_set(&vha->loop_down_timer,
1431                                     LOOP_DOWN_TIME);
1432                         if (!N2N_TOPO(ha))
1433                                 qla2x00_mark_all_devices_lost(vha);
1434                 }
1435
1436                 if (vha->vp_idx) {
1437                         atomic_set(&vha->vp_state, VP_FAILED);
1438                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1439                 }
1440
1441                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1442                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1443
1444                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1445                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1446
1447                 vha->flags.management_server_logged_in = 0;
1448                 break;
1449
1450         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1451                 if (IS_QLA2100(ha))
1452                         break;
1453
1454                 ql_dbg(ql_dbg_async, vha, 0x500f,
1455                     "Configuration change detected: value=%x.\n", mb[1]);
1456
1457                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1458                         atomic_set(&vha->loop_state, LOOP_DOWN);
1459                         if (!atomic_read(&vha->loop_down_timer))
1460                                 atomic_set(&vha->loop_down_timer,
1461                                     LOOP_DOWN_TIME);
1462                         qla2x00_mark_all_devices_lost(vha);
1463                 }
1464
1465                 if (vha->vp_idx) {
1466                         atomic_set(&vha->vp_state, VP_FAILED);
1467                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1468                 }
1469
1470                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1471                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1472                 break;
1473
1474         case MBA_PORT_UPDATE:           /* Port database update */
1475                 /*
1476                  * Handle only global and vn-port update events
1477                  *
1478                  * Relevant inputs:
1479                  * mb[1] = N_Port handle of changed port
1480                  * OR 0xffff for global event
1481                  * mb[2] = New login state
1482                  * 7 = Port logged out
1483                  * mb[3] = LSB is vp_idx, 0xff = all vps
1484                  *
1485                  * Skip processing if:
1486                  *       Event is global, vp_idx is NOT all vps,
1487                  *           vp_idx does not match
1488                  *       Event is not global, vp_idx does not match
1489                  */
1490                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1491                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1492                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1493                         break;
1494
1495                 if (mb[2] == 0x7) {
1496                         ql_dbg(ql_dbg_async, vha, 0x5010,
1497                             "Port %s %04x %04x %04x.\n",
1498                             mb[1] == 0xffff ? "unavailable" : "logout",
1499                             mb[1], mb[2], mb[3]);
1500
1501                         if (mb[1] == 0xffff)
1502                                 goto global_port_update;
1503
1504                         if (mb[1] == NPH_SNS_LID(ha)) {
1505                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1506                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1507                                 break;
1508                         }
1509
1510                         /* use handle_cnt for loop id/nport handle */
1511                         if (IS_FWI2_CAPABLE(ha))
1512                                 handle_cnt = NPH_SNS;
1513                         else
1514                                 handle_cnt = SIMPLE_NAME_SERVER;
1515                         if (mb[1] == handle_cnt) {
1516                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1517                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1518                                 break;
1519                         }
1520
1521                         /* Port logout */
1522                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1523                         if (!fcport)
1524                                 break;
1525                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1526                                 break;
1527                         ql_dbg(ql_dbg_async, vha, 0x508a,
1528                             "Marking port lost loopid=%04x portid=%06x.\n",
1529                             fcport->loop_id, fcport->d_id.b24);
1530                         if (qla_ini_mode_enabled(vha)) {
1531                                 fcport->logout_on_delete = 0;
1532                                 qlt_schedule_sess_for_deletion(fcport);
1533                         }
1534                         break;
1535
1536 global_port_update:
1537                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1538                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1539                                 atomic_set(&vha->loop_down_timer,
1540                                     LOOP_DOWN_TIME);
1541                                 vha->device_flags |= DFLG_NO_CABLE;
1542                                 qla2x00_mark_all_devices_lost(vha);
1543                         }
1544
1545                         if (vha->vp_idx) {
1546                                 atomic_set(&vha->vp_state, VP_FAILED);
1547                                 fc_vport_set_state(vha->fc_vport,
1548                                     FC_VPORT_FAILED);
1549                                 qla2x00_mark_all_devices_lost(vha);
1550                         }
1551
1552                         vha->flags.management_server_logged_in = 0;
1553                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1554                         break;
1555                 }
1556
1557                 /*
1558                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1559                  * event etc. earlier indicating loop is down) then process
1560                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1561                  */
1562                 atomic_set(&vha->loop_down_timer, 0);
1563                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1564                         !ha->flags.n2n_ae  &&
1565                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1566                         ql_dbg(ql_dbg_async, vha, 0x5011,
1567                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1568                             mb[1], mb[2], mb[3]);
1569                         break;
1570                 }
1571
1572                 ql_dbg(ql_dbg_async, vha, 0x5012,
1573                     "Port database changed %04x %04x %04x.\n",
1574                     mb[1], mb[2], mb[3]);
1575
1576                 /*
1577                  * Mark all devices as missing so we will login again.
1578                  */
1579                 atomic_set(&vha->loop_state, LOOP_UP);
1580                 vha->scan.scan_retry = 0;
1581
1582                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1583                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1584                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1585                 break;
1586
1587         case MBA_RSCN_UPDATE:           /* State Change Registration */
1588                 /* Check if the Vport has issued a SCR */
1589                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1590                         break;
1591                 /* Only handle SCNs for our Vport index. */
1592                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1593                         break;
1594
1595                 ql_log(ql_log_warn, vha, 0x5013,
1596                        "RSCN database changed -- %04x %04x %04x.\n",
1597                        mb[1], mb[2], mb[3]);
1598
1599                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1600                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1601                                 | vha->d_id.b.al_pa;
1602                 if (rscn_entry == host_pid) {
1603                         ql_dbg(ql_dbg_async, vha, 0x5014,
1604                             "Ignoring RSCN update to local host "
1605                             "port ID (%06x).\n", host_pid);
1606                         break;
1607                 }
1608
1609                 /* Ignore reserved bits from RSCN-payload. */
1610                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1611
1612                 /* Skip RSCNs for virtual ports on the same physical port */
1613                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1614                         break;
1615
1616                 atomic_set(&vha->loop_down_timer, 0);
1617                 vha->flags.management_server_logged_in = 0;
1618                 {
1619                         struct event_arg ea;
1620
1621                         memset(&ea, 0, sizeof(ea));
1622                         ea.id.b24 = rscn_entry;
1623                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1624                         qla2x00_handle_rscn(vha, &ea);
1625                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1626                 }
1627                 break;
1628         case MBA_CONGN_NOTI_RECV:
1629                 if (!ha->flags.scm_enabled ||
1630                     mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1631                         break;
1632
1633                 if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1634                         ql_dbg(ql_dbg_async, vha, 0x509b,
1635                                "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1636                 } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1637                         ql_log(ql_log_warn, vha, 0x509b,
1638                                "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1639                 }
1640                 break;
1641         /* case MBA_RIO_RESPONSE: */
1642         case MBA_ZIO_RESPONSE:
1643                 ql_dbg(ql_dbg_async, vha, 0x5015,
1644                     "[R|Z]IO update completion.\n");
1645
1646                 if (IS_FWI2_CAPABLE(ha))
1647                         qla24xx_process_response_queue(vha, rsp);
1648                 else
1649                         qla2x00_process_response_queue(rsp);
1650                 break;
1651
1652         case MBA_DISCARD_RND_FRAME:
1653                 ql_dbg(ql_dbg_async, vha, 0x5016,
1654                     "Discard RND Frame -- %04x %04x %04x.\n",
1655                     mb[1], mb[2], mb[3]);
1656                 vha->interface_err_cnt++;
1657                 break;
1658
1659         case MBA_TRACE_NOTIFICATION:
1660                 ql_dbg(ql_dbg_async, vha, 0x5017,
1661                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1662                 break;
1663
1664         case MBA_ISP84XX_ALERT:
1665                 ql_dbg(ql_dbg_async, vha, 0x5018,
1666                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1667                     mb[1], mb[2], mb[3]);
1668
1669                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1670                 switch (mb[1]) {
1671                 case A84_PANIC_RECOVERY:
1672                         ql_log(ql_log_info, vha, 0x5019,
1673                             "Alert 84XX: panic recovery %04x %04x.\n",
1674                             mb[2], mb[3]);
1675                         break;
1676                 case A84_OP_LOGIN_COMPLETE:
1677                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1678                         ql_log(ql_log_info, vha, 0x501a,
1679                             "Alert 84XX: firmware version %x.\n",
1680                             ha->cs84xx->op_fw_version);
1681                         break;
1682                 case A84_DIAG_LOGIN_COMPLETE:
1683                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1684                         ql_log(ql_log_info, vha, 0x501b,
1685                             "Alert 84XX: diagnostic firmware version %x.\n",
1686                             ha->cs84xx->diag_fw_version);
1687                         break;
1688                 case A84_GOLD_LOGIN_COMPLETE:
1689                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1690                         ha->cs84xx->fw_update = 1;
1691                         ql_log(ql_log_info, vha, 0x501c,
1692                             "Alert 84XX: gold firmware version %x.\n",
1693                             ha->cs84xx->gold_fw_version);
1694                         break;
1695                 default:
1696                         ql_log(ql_log_warn, vha, 0x501d,
1697                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1698                             mb[1], mb[2], mb[3]);
1699                 }
1700                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1701                 break;
1702         case MBA_DCBX_START:
1703                 ql_dbg(ql_dbg_async, vha, 0x501e,
1704                     "DCBX Started -- %04x %04x %04x.\n",
1705                     mb[1], mb[2], mb[3]);
1706                 break;
1707         case MBA_DCBX_PARAM_UPDATE:
1708                 ql_dbg(ql_dbg_async, vha, 0x501f,
1709                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1710                     mb[1], mb[2], mb[3]);
1711                 break;
1712         case MBA_FCF_CONF_ERR:
1713                 ql_dbg(ql_dbg_async, vha, 0x5020,
1714                     "FCF Configuration Error -- %04x %04x %04x.\n",
1715                     mb[1], mb[2], mb[3]);
1716                 break;
1717         case MBA_IDC_NOTIFY:
1718                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1719                         mb[4] = rd_reg_word(&reg24->mailbox4);
1720                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1721                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1722                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1723                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1724                                 /*
1725                                  * Extend loop down timer since port is active.
1726                                  */
1727                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1728                                         atomic_set(&vha->loop_down_timer,
1729                                             LOOP_DOWN_TIME);
1730                                 qla2xxx_wake_dpc(vha);
1731                         }
1732                 }
1733                 fallthrough;
1734         case MBA_IDC_COMPLETE:
1735                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1736                         complete(&ha->lb_portup_comp);
1737                 fallthrough;
1738         case MBA_IDC_TIME_EXT:
1739                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1740                     IS_QLA8044(ha))
1741                         qla81xx_idc_event(vha, mb[0], mb[1]);
1742                 break;
1743
1744         case MBA_IDC_AEN:
1745                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1746                         vha->hw_err_cnt++;
1747                         qla27xx_handle_8200_aen(vha, mb);
1748                 } else if (IS_QLA83XX(ha)) {
1749                         mb[4] = rd_reg_word(&reg24->mailbox4);
1750                         mb[5] = rd_reg_word(&reg24->mailbox5);
1751                         mb[6] = rd_reg_word(&reg24->mailbox6);
1752                         mb[7] = rd_reg_word(&reg24->mailbox7);
1753                         qla83xx_handle_8200_aen(vha, mb);
1754                 } else {
1755                         ql_dbg(ql_dbg_async, vha, 0x5052,
1756                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1757                             mb[0], mb[1], mb[2], mb[3]);
1758                 }
1759                 break;
1760
1761         case MBA_DPORT_DIAGNOSTICS:
1762                 if ((mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_NOERR ||
1763                     (mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_ERR)
1764                         vha->dport_status &= ~DPORT_DIAG_IN_PROGRESS;
1765                 ql_dbg(ql_dbg_async, vha, 0x5052,
1766                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1767                     mb[0], mb[1], mb[2], mb[3]);
1768                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1769                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1770                         static char *results[] = {
1771                             "start", "done(pass)", "done(error)", "undefined" };
1772                         static char *types[] = {
1773                             "none", "dynamic", "static", "other" };
1774                         uint result = mb[1] >> 0 & 0x3;
1775                         uint type = mb[1] >> 6 & 0x3;
1776                         uint sw = mb[1] >> 15 & 0x1;
1777                         ql_dbg(ql_dbg_async, vha, 0x5052,
1778                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1779                             results[result], types[type], sw);
1780                         if (result == 2) {
1781                                 static char *reasons[] = {
1782                                     "reserved", "unexpected reject",
1783                                     "unexpected phase", "retry exceeded",
1784                                     "timed out", "not supported",
1785                                     "user stopped" };
1786                                 uint reason = mb[2] >> 0 & 0xf;
1787                                 uint phase = mb[2] >> 12 & 0xf;
1788                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1789                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1790                                     reason < 7 ? reasons[reason] : "other",
1791                                     phase >> 1);
1792                         }
1793                 }
1794                 break;
1795
1796         case MBA_TEMPERATURE_ALERT:
1797                 ql_dbg(ql_dbg_async, vha, 0x505e,
1798                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1799                 break;
1800
1801         case MBA_TRANS_INSERT:
1802                 ql_dbg(ql_dbg_async, vha, 0x5091,
1803                     "Transceiver Insertion: %04x\n", mb[1]);
1804                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1805                 break;
1806
1807         case MBA_TRANS_REMOVE:
1808                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1809                 break;
1810
1811         default:
1812                 ql_dbg(ql_dbg_async, vha, 0x5057,
1813                     "Unknown AEN:%04x %04x %04x %04x\n",
1814                     mb[0], mb[1], mb[2], mb[3]);
1815         }
1816
1817         qlt_async_event(mb[0], vha, mb);
1818
1819         if (!vha->vp_idx && ha->num_vhosts)
1820                 qla2x00_alert_all_vps(rsp, mb);
1821 }
1822
1823 /**
1824  * qla2x00_process_completed_request() - Process a Fast Post response.
1825  * @vha: SCSI driver HA context
1826  * @req: request queue
1827  * @index: SRB index
1828  */
1829 void
1830 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1831                                   struct req_que *req, uint32_t index)
1832 {
1833         srb_t *sp;
1834         struct qla_hw_data *ha = vha->hw;
1835
1836         /* Validate handle. */
1837         if (index >= req->num_outstanding_cmds) {
1838                 ql_log(ql_log_warn, vha, 0x3014,
1839                     "Invalid SCSI command index (%x).\n", index);
1840
1841                 if (IS_P3P_TYPE(ha))
1842                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1843                 else
1844                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1845                 return;
1846         }
1847
1848         sp = req->outstanding_cmds[index];
1849         if (sp) {
1850                 /* Free outstanding command slot. */
1851                 req->outstanding_cmds[index] = NULL;
1852
1853                 /* Save ISP completion status */
1854                 sp->done(sp, DID_OK << 16);
1855         } else {
1856                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1857
1858                 if (IS_P3P_TYPE(ha))
1859                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1860                 else
1861                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1862         }
1863 }
1864
1865 srb_t *
1866 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1867     struct req_que *req, void *iocb)
1868 {
1869         struct qla_hw_data *ha = vha->hw;
1870         sts_entry_t *pkt = iocb;
1871         srb_t *sp;
1872         uint16_t index;
1873
1874         if (pkt->handle == QLA_SKIP_HANDLE)
1875                 return NULL;
1876
1877         index = LSW(pkt->handle);
1878         if (index >= req->num_outstanding_cmds) {
1879                 ql_log(ql_log_warn, vha, 0x5031,
1880                            "%s: Invalid command index (%x) type %8ph.\n",
1881                            func, index, iocb);
1882                 if (IS_P3P_TYPE(ha))
1883                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1884                 else
1885                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1886                 return NULL;
1887         }
1888         sp = req->outstanding_cmds[index];
1889         if (!sp) {
1890                 ql_log(ql_log_warn, vha, 0x5032,
1891                         "%s: Invalid completion handle (%x) -- timed-out.\n",
1892                         func, index);
1893                 return NULL;
1894         }
1895         if (sp->handle != index) {
1896                 ql_log(ql_log_warn, vha, 0x5033,
1897                         "%s: SRB handle (%x) mismatch %x.\n", func,
1898                         sp->handle, index);
1899                 return NULL;
1900         }
1901
1902         req->outstanding_cmds[index] = NULL;
1903
1904         qla_put_fw_resources(sp->qpair, &sp->iores);
1905         return sp;
1906 }
1907
1908 static void
1909 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1910     struct mbx_entry *mbx)
1911 {
1912         const char func[] = "MBX-IOCB";
1913         const char *type;
1914         fc_port_t *fcport;
1915         srb_t *sp;
1916         struct srb_iocb *lio;
1917         uint16_t *data;
1918         uint16_t status;
1919
1920         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1921         if (!sp)
1922                 return;
1923
1924         lio = &sp->u.iocb_cmd;
1925         type = sp->name;
1926         fcport = sp->fcport;
1927         data = lio->u.logio.data;
1928
1929         data[0] = MBS_COMMAND_ERROR;
1930         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1931             QLA_LOGIO_LOGIN_RETRIED : 0;
1932         if (mbx->entry_status) {
1933                 ql_dbg(ql_dbg_async, vha, 0x5043,
1934                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1935                     "entry-status=%x status=%x state-flag=%x "
1936                     "status-flags=%x.\n", type, sp->handle,
1937                     fcport->d_id.b.domain, fcport->d_id.b.area,
1938                     fcport->d_id.b.al_pa, mbx->entry_status,
1939                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1940                     le16_to_cpu(mbx->status_flags));
1941
1942                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1943                     mbx, sizeof(*mbx));
1944
1945                 goto logio_done;
1946         }
1947
1948         status = le16_to_cpu(mbx->status);
1949         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1950             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1951                 status = 0;
1952         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1953                 ql_dbg(ql_dbg_async, vha, 0x5045,
1954                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1955                     type, sp->handle, fcport->d_id.b.domain,
1956                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1957                     le16_to_cpu(mbx->mb1));
1958
1959                 data[0] = MBS_COMMAND_COMPLETE;
1960                 if (sp->type == SRB_LOGIN_CMD) {
1961                         fcport->port_type = FCT_TARGET;
1962                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1963                                 fcport->port_type = FCT_INITIATOR;
1964                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1965                                 fcport->flags |= FCF_FCP2_DEVICE;
1966                 }
1967                 goto logio_done;
1968         }
1969
1970         data[0] = le16_to_cpu(mbx->mb0);
1971         switch (data[0]) {
1972         case MBS_PORT_ID_USED:
1973                 data[1] = le16_to_cpu(mbx->mb1);
1974                 break;
1975         case MBS_LOOP_ID_USED:
1976                 break;
1977         default:
1978                 data[0] = MBS_COMMAND_ERROR;
1979                 break;
1980         }
1981
1982         ql_log(ql_log_warn, vha, 0x5046,
1983             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1984             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1985             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1986             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1987             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1988             le16_to_cpu(mbx->mb7));
1989
1990 logio_done:
1991         sp->done(sp, 0);
1992 }
1993
1994 static void
1995 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1996     struct mbx_24xx_entry *pkt)
1997 {
1998         const char func[] = "MBX-IOCB2";
1999         struct qla_hw_data *ha = vha->hw;
2000         srb_t *sp;
2001         struct srb_iocb *si;
2002         u16 sz, i;
2003         int res;
2004
2005         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2006         if (!sp)
2007                 return;
2008
2009         if (sp->type == SRB_SCSI_CMD ||
2010             sp->type == SRB_NVME_CMD ||
2011             sp->type == SRB_TM_CMD) {
2012                 ql_log(ql_log_warn, vha, 0x509d,
2013                         "Inconsistent event entry type %d\n", sp->type);
2014                 if (IS_P3P_TYPE(ha))
2015                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2016                 else
2017                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2018                 return;
2019         }
2020
2021         si = &sp->u.iocb_cmd;
2022         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
2023
2024         for (i = 0; i < sz; i++)
2025                 si->u.mbx.in_mb[i] = pkt->mb[i];
2026
2027         res = (si->u.mbx.in_mb[0] & MBS_MASK);
2028
2029         sp->done(sp, res);
2030 }
2031
2032 static void
2033 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2034     struct nack_to_isp *pkt)
2035 {
2036         const char func[] = "nack";
2037         srb_t *sp;
2038         int res = 0;
2039
2040         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2041         if (!sp)
2042                 return;
2043
2044         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
2045                 res = QLA_FUNCTION_FAILED;
2046
2047         sp->done(sp, res);
2048 }
2049
2050 static void
2051 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
2052     sts_entry_t *pkt, int iocb_type)
2053 {
2054         const char func[] = "CT_IOCB";
2055         const char *type;
2056         srb_t *sp;
2057         struct bsg_job *bsg_job;
2058         struct fc_bsg_reply *bsg_reply;
2059         uint16_t comp_status;
2060         int res = 0;
2061
2062         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2063         if (!sp)
2064                 return;
2065
2066         switch (sp->type) {
2067         case SRB_CT_CMD:
2068             bsg_job = sp->u.bsg_job;
2069             bsg_reply = bsg_job->reply;
2070
2071             type = "ct pass-through";
2072
2073             comp_status = le16_to_cpu(pkt->comp_status);
2074
2075             /*
2076              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2077              * fc payload  to the caller
2078              */
2079             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2080             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2081
2082             if (comp_status != CS_COMPLETE) {
2083                     if (comp_status == CS_DATA_UNDERRUN) {
2084                             res = DID_OK << 16;
2085                             bsg_reply->reply_payload_rcv_len =
2086                                 le16_to_cpu(pkt->rsp_info_len);
2087
2088                             ql_log(ql_log_warn, vha, 0x5048,
2089                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
2090                                 type, comp_status,
2091                                 bsg_reply->reply_payload_rcv_len);
2092                     } else {
2093                             ql_log(ql_log_warn, vha, 0x5049,
2094                                 "CT pass-through-%s error comp_status=0x%x.\n",
2095                                 type, comp_status);
2096                             res = DID_ERROR << 16;
2097                             bsg_reply->reply_payload_rcv_len = 0;
2098                     }
2099                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
2100                         pkt, sizeof(*pkt));
2101             } else {
2102                     res = DID_OK << 16;
2103                     bsg_reply->reply_payload_rcv_len =
2104                         bsg_job->reply_payload.payload_len;
2105                     bsg_job->reply_len = 0;
2106             }
2107             break;
2108         case SRB_CT_PTHRU_CMD:
2109             /*
2110              * borrowing sts_entry_24xx.comp_status.
2111              * same location as ct_entry_24xx.comp_status
2112              */
2113              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
2114                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2115                  sp->name);
2116              break;
2117         }
2118
2119         sp->done(sp, res);
2120 }
2121
2122 static void
2123 qla24xx_els_ct_entry(scsi_qla_host_t *v, struct req_que *req,
2124     struct sts_entry_24xx *pkt, int iocb_type)
2125 {
2126         struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
2127         const char func[] = "ELS_CT_IOCB";
2128         const char *type;
2129         srb_t *sp;
2130         struct bsg_job *bsg_job;
2131         struct fc_bsg_reply *bsg_reply;
2132         uint16_t comp_status;
2133         uint32_t fw_status[3];
2134         int res, logit = 1;
2135         struct srb_iocb *els;
2136         uint n;
2137         scsi_qla_host_t *vha;
2138         struct els_sts_entry_24xx *e = (struct els_sts_entry_24xx *)pkt;
2139
2140         sp = qla2x00_get_sp_from_handle(v, func, req, pkt);
2141         if (!sp)
2142                 return;
2143         bsg_job = sp->u.bsg_job;
2144         vha = sp->vha;
2145
2146         type = NULL;
2147
2148         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2149         fw_status[1] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_1);
2150         fw_status[2] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_2);
2151
2152         switch (sp->type) {
2153         case SRB_ELS_CMD_RPT:
2154         case SRB_ELS_CMD_HST:
2155                 type = "rpt hst";
2156                 break;
2157         case SRB_ELS_CMD_HST_NOLOGIN:
2158                 type = "els";
2159                 {
2160                         struct els_entry_24xx *els = (void *)pkt;
2161                         struct qla_bsg_auth_els_request *p =
2162                                 (struct qla_bsg_auth_els_request *)bsg_job->request;
2163
2164                         ql_dbg(ql_dbg_user, vha, 0x700f,
2165                              "%s %s. portid=%02x%02x%02x status %x xchg %x bsg ptr %p\n",
2166                              __func__, sc_to_str(p->e.sub_cmd),
2167                              e->d_id[2], e->d_id[1], e->d_id[0],
2168                              comp_status, p->e.extra_rx_xchg_address, bsg_job);
2169
2170                         if (!(le16_to_cpu(els->control_flags) & ECF_PAYLOAD_DESCR_MASK)) {
2171                                 if (sp->remap.remapped) {
2172                                         n = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2173                                                 bsg_job->reply_payload.sg_cnt,
2174                                                 sp->remap.rsp.buf,
2175                                                 sp->remap.rsp.len);
2176                                         ql_dbg(ql_dbg_user + ql_dbg_verbose, vha, 0x700e,
2177                                            "%s: SG copied %x of %x\n",
2178                                            __func__, n, sp->remap.rsp.len);
2179                                 } else {
2180                                         ql_dbg(ql_dbg_user, vha, 0x700f,
2181                                            "%s: NOT REMAPPED (error)...!!!\n",
2182                                            __func__);
2183                                 }
2184                         }
2185                 }
2186                 break;
2187         case SRB_CT_CMD:
2188                 type = "ct pass-through";
2189                 break;
2190         case SRB_ELS_DCMD:
2191                 type = "Driver ELS logo";
2192                 if (iocb_type != ELS_IOCB_TYPE) {
2193                         ql_dbg(ql_dbg_user, vha, 0x5047,
2194                             "Completing %s: (%p) type=%d.\n",
2195                             type, sp, sp->type);
2196                         sp->done(sp, 0);
2197                         return;
2198                 }
2199                 break;
2200         case SRB_CT_PTHRU_CMD:
2201                 /* borrowing sts_entry_24xx.comp_status.
2202                    same location as ct_entry_24xx.comp_status
2203                  */
2204                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2205                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2206                         sp->name);
2207                 sp->done(sp, res);
2208                 return;
2209         default:
2210                 ql_dbg(ql_dbg_user, vha, 0x503e,
2211                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2212                 return;
2213         }
2214
2215         if (iocb_type == ELS_IOCB_TYPE) {
2216                 els = &sp->u.iocb_cmd;
2217                 els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2218                 els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2219                 els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2220                 els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2221                 if (comp_status == CS_COMPLETE) {
2222                         res =  DID_OK << 16;
2223                 } else {
2224                         if (comp_status == CS_DATA_UNDERRUN) {
2225                                 res =  DID_OK << 16;
2226                                 els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2227                                         ese->total_byte_count));
2228
2229                                 if (sp->remap.remapped &&
2230                                     ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_ACC) {
2231                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2232                                             "%s IOCB Done LS_ACC %02x%02x%02x -> %02x%02x%02x",
2233                                             __func__, e->s_id[0], e->s_id[2], e->s_id[1],
2234                                             e->d_id[2], e->d_id[1], e->d_id[0]);
2235                                         logit = 0;
2236                                 }
2237
2238                         } else if (comp_status == CS_PORT_LOGGED_OUT) {
2239                                 ql_dbg(ql_dbg_disc, vha, 0x911e,
2240                                        "%s %d schedule session deletion\n",
2241                                        __func__, __LINE__);
2242
2243                                 els->u.els_plogi.len = 0;
2244                                 res = DID_IMM_RETRY << 16;
2245                                 qlt_schedule_sess_for_deletion(sp->fcport);
2246                         } else {
2247                                 els->u.els_plogi.len = 0;
2248                                 res = DID_ERROR << 16;
2249                         }
2250
2251                         if (sp->remap.remapped &&
2252                             ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_RJT) {
2253                                 if (logit) {
2254                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2255                                             "%s IOCB Done LS_RJT hdl=%x comp_status=0x%x\n",
2256                                             type, sp->handle, comp_status);
2257
2258                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2259                                             "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2260                                             fw_status[1], fw_status[2],
2261                                             le32_to_cpu(((struct els_sts_entry_24xx *)
2262                                                 pkt)->total_byte_count),
2263                                             e->s_id[0], e->s_id[2], e->s_id[1],
2264                                             e->d_id[2], e->d_id[1], e->d_id[0]);
2265                                 }
2266                                 if (sp->fcport && sp->fcport->flags & FCF_FCSP_DEVICE &&
2267                                     sp->type == SRB_ELS_CMD_HST_NOLOGIN) {
2268                                         ql_dbg(ql_dbg_edif, vha, 0x911e,
2269                                             "%s rcv reject. Sched delete\n", __func__);
2270                                         qlt_schedule_sess_for_deletion(sp->fcport);
2271                                 }
2272                         } else if (logit) {
2273                                 ql_log(ql_log_info, vha, 0x503f,
2274                                     "%s IOCB Done hdl=%x comp_status=0x%x\n",
2275                                     type, sp->handle, comp_status);
2276                                 ql_log(ql_log_info, vha, 0x503f,
2277                                     "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2278                                     fw_status[1], fw_status[2],
2279                                     le32_to_cpu(((struct els_sts_entry_24xx *)
2280                                     pkt)->total_byte_count),
2281                                     e->s_id[0], e->s_id[2], e->s_id[1],
2282                                     e->d_id[2], e->d_id[1], e->d_id[0]);
2283                         }
2284                 }
2285                 goto els_ct_done;
2286         }
2287
2288         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2289          * fc payload  to the caller
2290          */
2291         bsg_job = sp->u.bsg_job;
2292         bsg_reply = bsg_job->reply;
2293         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2294         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2295
2296         if (comp_status != CS_COMPLETE) {
2297                 if (comp_status == CS_DATA_UNDERRUN) {
2298                         res = DID_OK << 16;
2299                         bsg_reply->reply_payload_rcv_len =
2300                                 le32_to_cpu(ese->total_byte_count);
2301
2302                         ql_dbg(ql_dbg_user, vha, 0x503f,
2303                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2304                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2305                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
2306                             le32_to_cpu(ese->total_byte_count));
2307                 } else {
2308                         ql_dbg(ql_dbg_user, vha, 0x5040,
2309                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2310                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
2311                             type, sp->handle, comp_status,
2312                             le32_to_cpu(ese->error_subcode_1),
2313                             le32_to_cpu(ese->error_subcode_2));
2314                         res = DID_ERROR << 16;
2315                         bsg_reply->reply_payload_rcv_len = 0;
2316                 }
2317                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2318                        fw_status, sizeof(fw_status));
2319                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2320                     pkt, sizeof(*pkt));
2321         }
2322         else {
2323                 res =  DID_OK << 16;
2324                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2325                 bsg_job->reply_len = 0;
2326         }
2327 els_ct_done:
2328
2329         sp->done(sp, res);
2330 }
2331
2332 static void
2333 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2334     struct logio_entry_24xx *logio)
2335 {
2336         const char func[] = "LOGIO-IOCB";
2337         const char *type;
2338         fc_port_t *fcport;
2339         srb_t *sp;
2340         struct srb_iocb *lio;
2341         uint16_t *data;
2342         uint32_t iop[2];
2343         int logit = 1;
2344
2345         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2346         if (!sp)
2347                 return;
2348
2349         lio = &sp->u.iocb_cmd;
2350         type = sp->name;
2351         fcport = sp->fcport;
2352         data = lio->u.logio.data;
2353
2354         data[0] = MBS_COMMAND_ERROR;
2355         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2356                 QLA_LOGIO_LOGIN_RETRIED : 0;
2357         if (logio->entry_status) {
2358                 ql_log(ql_log_warn, fcport->vha, 0x5034,
2359                     "Async-%s error entry - %8phC hdl=%x"
2360                     "portid=%02x%02x%02x entry-status=%x.\n",
2361                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2362                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2363                     logio->entry_status);
2364                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2365                     logio, sizeof(*logio));
2366
2367                 goto logio_done;
2368         }
2369
2370         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2371                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2372                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2373                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
2374                     le32_to_cpu(logio->io_parameter[0]));
2375
2376                 vha->hw->exch_starvation = 0;
2377                 data[0] = MBS_COMMAND_COMPLETE;
2378
2379                 if (sp->type == SRB_PRLI_CMD) {
2380                         lio->u.logio.iop[0] =
2381                             le32_to_cpu(logio->io_parameter[0]);
2382                         lio->u.logio.iop[1] =
2383                             le32_to_cpu(logio->io_parameter[1]);
2384                         goto logio_done;
2385                 }
2386
2387                 if (sp->type != SRB_LOGIN_CMD)
2388                         goto logio_done;
2389
2390                 lio->u.logio.iop[1] = le32_to_cpu(logio->io_parameter[5]);
2391                 if (le32_to_cpu(logio->io_parameter[5]) & LIO_COMM_FEAT_FCSP)
2392                         fcport->flags |= FCF_FCSP_DEVICE;
2393
2394                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
2395                 if (iop[0] & BIT_4) {
2396                         fcport->port_type = FCT_TARGET;
2397                         if (iop[0] & BIT_8)
2398                                 fcport->flags |= FCF_FCP2_DEVICE;
2399                 } else if (iop[0] & BIT_5)
2400                         fcport->port_type = FCT_INITIATOR;
2401
2402                 if (iop[0] & BIT_7)
2403                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2404
2405                 if (logio->io_parameter[7] || logio->io_parameter[8])
2406                         fcport->supported_classes |= FC_COS_CLASS2;
2407                 if (logio->io_parameter[9] || logio->io_parameter[10])
2408                         fcport->supported_classes |= FC_COS_CLASS3;
2409
2410                 goto logio_done;
2411         }
2412
2413         iop[0] = le32_to_cpu(logio->io_parameter[0]);
2414         iop[1] = le32_to_cpu(logio->io_parameter[1]);
2415         lio->u.logio.iop[0] = iop[0];
2416         lio->u.logio.iop[1] = iop[1];
2417         switch (iop[0]) {
2418         case LSC_SCODE_PORTID_USED:
2419                 data[0] = MBS_PORT_ID_USED;
2420                 data[1] = LSW(iop[1]);
2421                 logit = 0;
2422                 break;
2423         case LSC_SCODE_NPORT_USED:
2424                 data[0] = MBS_LOOP_ID_USED;
2425                 logit = 0;
2426                 break;
2427         case LSC_SCODE_CMD_FAILED:
2428                 if (iop[1] == 0x0606) {
2429                         /*
2430                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2431                          * Target side acked.
2432                          */
2433                         data[0] = MBS_COMMAND_COMPLETE;
2434                         goto logio_done;
2435                 }
2436                 data[0] = MBS_COMMAND_ERROR;
2437                 break;
2438         case LSC_SCODE_NOXCB:
2439                 vha->hw->exch_starvation++;
2440                 if (vha->hw->exch_starvation > 5) {
2441                         ql_log(ql_log_warn, vha, 0xd046,
2442                             "Exchange starvation. Resetting RISC\n");
2443
2444                         vha->hw->exch_starvation = 0;
2445
2446                         if (IS_P3P_TYPE(vha->hw))
2447                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2448                         else
2449                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2450                         qla2xxx_wake_dpc(vha);
2451                 }
2452                 fallthrough;
2453         default:
2454                 data[0] = MBS_COMMAND_ERROR;
2455                 break;
2456         }
2457
2458         if (logit)
2459                 ql_log(ql_log_warn, sp->vha, 0x5037, "Async-%s failed: "
2460                        "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2461                        type, sp->handle, fcport->d_id.b24, fcport->port_name,
2462                        le16_to_cpu(logio->comp_status),
2463                        le32_to_cpu(logio->io_parameter[0]),
2464                        le32_to_cpu(logio->io_parameter[1]));
2465         else
2466                 ql_dbg(ql_dbg_disc, sp->vha, 0x5037, "Async-%s failed: "
2467                        "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2468                        type, sp->handle, fcport->d_id.b24, fcport->port_name,
2469                        le16_to_cpu(logio->comp_status),
2470                        le32_to_cpu(logio->io_parameter[0]),
2471                        le32_to_cpu(logio->io_parameter[1]));
2472
2473 logio_done:
2474         sp->done(sp, 0);
2475 }
2476
2477 static void
2478 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2479 {
2480         const char func[] = "TMF-IOCB";
2481         const char *type;
2482         fc_port_t *fcport;
2483         srb_t *sp;
2484         struct srb_iocb *iocb;
2485         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2486         u16 comp_status;
2487
2488         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2489         if (!sp)
2490                 return;
2491
2492         comp_status = le16_to_cpu(sts->comp_status);
2493         iocb = &sp->u.iocb_cmd;
2494         type = sp->name;
2495         fcport = sp->fcport;
2496         iocb->u.tmf.data = QLA_SUCCESS;
2497
2498         if (sts->entry_status) {
2499                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2500                     "Async-%s error - hdl=%x entry-status(%x).\n",
2501                     type, sp->handle, sts->entry_status);
2502                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2503         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2504                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2505                     "Async-%s error - hdl=%x completion status(%x).\n",
2506                     type, sp->handle, comp_status);
2507                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2508         } else if ((le16_to_cpu(sts->scsi_status) &
2509             SS_RESPONSE_INFO_LEN_VALID)) {
2510                 host_to_fcp_swap(sts->data, sizeof(sts->data));
2511                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2512                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2513                             "Async-%s error - hdl=%x not enough response(%d).\n",
2514                             type, sp->handle, sts->rsp_data_len);
2515                 } else if (sts->data[3]) {
2516                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2517                             "Async-%s error - hdl=%x response(%x).\n",
2518                             type, sp->handle, sts->data[3]);
2519                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2520                 }
2521         }
2522
2523         switch (comp_status) {
2524         case CS_PORT_LOGGED_OUT:
2525         case CS_PORT_CONFIG_CHG:
2526         case CS_PORT_BUSY:
2527         case CS_INCOMPLETE:
2528         case CS_PORT_UNAVAILABLE:
2529         case CS_TIMEOUT:
2530         case CS_RESET:
2531                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2532                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2533                                "-Port to be marked lost on fcport=%02x%02x%02x, current port state= %s comp_status %x.\n",
2534                                fcport->d_id.b.domain, fcport->d_id.b.area,
2535                                fcport->d_id.b.al_pa,
2536                                port_state_str[FCS_ONLINE],
2537                                comp_status);
2538
2539                         qlt_schedule_sess_for_deletion(fcport);
2540                 }
2541                 break;
2542
2543         default:
2544                 break;
2545         }
2546
2547         if (iocb->u.tmf.data != QLA_SUCCESS)
2548                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2549                     sts, sizeof(*sts));
2550
2551         sp->done(sp, 0);
2552 }
2553
2554 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2555     void *tsk, srb_t *sp)
2556 {
2557         fc_port_t *fcport;
2558         struct srb_iocb *iocb;
2559         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2560         uint16_t        state_flags;
2561         struct nvmefc_fcp_req *fd;
2562         uint16_t        ret = QLA_SUCCESS;
2563         __le16          comp_status = sts->comp_status;
2564         int             logit = 0;
2565
2566         iocb = &sp->u.iocb_cmd;
2567         fcport = sp->fcport;
2568         iocb->u.nvme.comp_status = comp_status;
2569         state_flags  = le16_to_cpu(sts->state_flags);
2570         fd = iocb->u.nvme.desc;
2571
2572         if (unlikely(iocb->u.nvme.aen_op))
2573                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2574         else
2575                 sp->qpair->cmd_completion_cnt++;
2576
2577         if (unlikely(comp_status != CS_COMPLETE))
2578                 logit = 1;
2579
2580         fd->transferred_length = fd->payload_length -
2581             le32_to_cpu(sts->residual_len);
2582
2583         /*
2584          * State flags: Bit 6 and 0.
2585          * If 0 is set, we don't care about 6.
2586          * both cases resp was dma'd to host buffer
2587          * if both are 0, that is good path case.
2588          * if six is set and 0 is clear, we need to
2589          * copy resp data from status iocb to resp buffer.
2590          */
2591         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2592                 iocb->u.nvme.rsp_pyld_len = 0;
2593         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2594                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2595                 /* Response already DMA'd to fd->rspaddr. */
2596                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2597         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2598                 /*
2599                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2600                  * as an error.
2601                  */
2602                 iocb->u.nvme.rsp_pyld_len = 0;
2603                 fd->transferred_length = 0;
2604                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2605                         "Unexpected values in NVMe_RSP IU.\n");
2606                 logit = 1;
2607         } else if (state_flags & SF_NVME_ERSP) {
2608                 uint32_t *inbuf, *outbuf;
2609                 uint16_t iter;
2610
2611                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2612                 outbuf = (uint32_t *)fd->rspaddr;
2613                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2614                 if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2615                     sizeof(struct nvme_fc_ersp_iu))) {
2616                         if (ql_mask_match(ql_dbg_io)) {
2617                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2618                                     iocb->u.nvme.rsp_pyld_len);
2619                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2620                                     "Unexpected response payload length %u.\n",
2621                                     iocb->u.nvme.rsp_pyld_len);
2622                         }
2623                         iocb->u.nvme.rsp_pyld_len =
2624                                 cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2625                 }
2626                 iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2627                 for (; iter; iter--)
2628                         *outbuf++ = swab32(*inbuf++);
2629         }
2630
2631         if (state_flags & SF_NVME_ERSP) {
2632                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2633                 u32 tgt_xfer_len;
2634
2635                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2636                 if (fd->transferred_length != tgt_xfer_len) {
2637                         ql_log(ql_log_warn, fcport->vha, 0x3079,
2638                                "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2639                                tgt_xfer_len, fd->transferred_length);
2640                         logit = 1;
2641                 } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2642                         /*
2643                          * Do not log if this is just an underflow and there
2644                          * is no data loss.
2645                          */
2646                         logit = 0;
2647                 }
2648         }
2649
2650         if (unlikely(logit))
2651                 ql_dbg(ql_dbg_io, fcport->vha, 0x5060,
2652                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2653                    sp->name, sp->handle, comp_status,
2654                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2655                    sts->ox_id);
2656
2657         /*
2658          * If transport error then Failure (HBA rejects request)
2659          * otherwise transport will handle.
2660          */
2661         switch (le16_to_cpu(comp_status)) {
2662         case CS_COMPLETE:
2663                 break;
2664
2665         case CS_RESET:
2666         case CS_PORT_UNAVAILABLE:
2667         case CS_PORT_LOGGED_OUT:
2668                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2669                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2670                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2671                                "Port to be marked lost on fcport=%06x, current "
2672                                "port state= %s comp_status %x.\n",
2673                                fcport->d_id.b24, port_state_str[FCS_ONLINE],
2674                                comp_status);
2675
2676                         qlt_schedule_sess_for_deletion(fcport);
2677                 }
2678                 fallthrough;
2679         case CS_ABORTED:
2680         case CS_PORT_BUSY:
2681                 fd->transferred_length = 0;
2682                 iocb->u.nvme.rsp_pyld_len = 0;
2683                 ret = QLA_ABORTED;
2684                 break;
2685         case CS_DATA_UNDERRUN:
2686                 break;
2687         default:
2688                 ret = QLA_FUNCTION_FAILED;
2689                 break;
2690         }
2691         sp->done(sp, ret);
2692 }
2693
2694 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2695     struct vp_ctrl_entry_24xx *vce)
2696 {
2697         const char func[] = "CTRLVP-IOCB";
2698         srb_t *sp;
2699         int rval = QLA_SUCCESS;
2700
2701         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2702         if (!sp)
2703                 return;
2704
2705         if (vce->entry_status != 0) {
2706                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2707                     "%s: Failed to complete IOCB -- error status (%x)\n",
2708                     sp->name, vce->entry_status);
2709                 rval = QLA_FUNCTION_FAILED;
2710         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2711                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2712                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2713                     sp->name, le16_to_cpu(vce->comp_status),
2714                     le16_to_cpu(vce->vp_idx_failed));
2715                 rval = QLA_FUNCTION_FAILED;
2716         } else {
2717                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2718                     "Done %s.\n", __func__);
2719         }
2720
2721         sp->rc = rval;
2722         sp->done(sp, rval);
2723 }
2724
2725 /* Process a single response queue entry. */
2726 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2727                                            struct rsp_que *rsp,
2728                                            sts_entry_t *pkt)
2729 {
2730         sts21_entry_t *sts21_entry;
2731         sts22_entry_t *sts22_entry;
2732         uint16_t handle_cnt;
2733         uint16_t cnt;
2734
2735         switch (pkt->entry_type) {
2736         case STATUS_TYPE:
2737                 qla2x00_status_entry(vha, rsp, pkt);
2738                 break;
2739         case STATUS_TYPE_21:
2740                 sts21_entry = (sts21_entry_t *)pkt;
2741                 handle_cnt = sts21_entry->handle_count;
2742                 for (cnt = 0; cnt < handle_cnt; cnt++)
2743                         qla2x00_process_completed_request(vha, rsp->req,
2744                                                 sts21_entry->handle[cnt]);
2745                 break;
2746         case STATUS_TYPE_22:
2747                 sts22_entry = (sts22_entry_t *)pkt;
2748                 handle_cnt = sts22_entry->handle_count;
2749                 for (cnt = 0; cnt < handle_cnt; cnt++)
2750                         qla2x00_process_completed_request(vha, rsp->req,
2751                                                 sts22_entry->handle[cnt]);
2752                 break;
2753         case STATUS_CONT_TYPE:
2754                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2755                 break;
2756         case MBX_IOCB_TYPE:
2757                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2758                 break;
2759         case CT_IOCB_TYPE:
2760                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2761                 break;
2762         default:
2763                 /* Type Not Supported. */
2764                 ql_log(ql_log_warn, vha, 0x504a,
2765                        "Received unknown response pkt type %x entry status=%x.\n",
2766                        pkt->entry_type, pkt->entry_status);
2767                 break;
2768         }
2769 }
2770
2771 /**
2772  * qla2x00_process_response_queue() - Process response queue entries.
2773  * @rsp: response queue
2774  */
2775 void
2776 qla2x00_process_response_queue(struct rsp_que *rsp)
2777 {
2778         struct scsi_qla_host *vha;
2779         struct qla_hw_data *ha = rsp->hw;
2780         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2781         sts_entry_t     *pkt;
2782
2783         vha = pci_get_drvdata(ha->pdev);
2784
2785         if (!vha->flags.online)
2786                 return;
2787
2788         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2789                 pkt = (sts_entry_t *)rsp->ring_ptr;
2790
2791                 rsp->ring_index++;
2792                 if (rsp->ring_index == rsp->length) {
2793                         rsp->ring_index = 0;
2794                         rsp->ring_ptr = rsp->ring;
2795                 } else {
2796                         rsp->ring_ptr++;
2797                 }
2798
2799                 if (pkt->entry_status != 0) {
2800                         qla2x00_error_entry(vha, rsp, pkt);
2801                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2802                         wmb();
2803                         continue;
2804                 }
2805
2806                 qla2x00_process_response_entry(vha, rsp, pkt);
2807                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2808                 wmb();
2809         }
2810
2811         /* Adjust ring index */
2812         wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2813 }
2814
2815 static inline void
2816 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2817                      uint32_t sense_len, struct rsp_que *rsp, int res)
2818 {
2819         struct scsi_qla_host *vha = sp->vha;
2820         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2821         uint32_t track_sense_len;
2822
2823         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2824                 sense_len = SCSI_SENSE_BUFFERSIZE;
2825
2826         SET_CMD_SENSE_LEN(sp, sense_len);
2827         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2828         track_sense_len = sense_len;
2829
2830         if (sense_len > par_sense_len)
2831                 sense_len = par_sense_len;
2832
2833         memcpy(cp->sense_buffer, sense_data, sense_len);
2834
2835         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2836         track_sense_len -= sense_len;
2837         SET_CMD_SENSE_LEN(sp, track_sense_len);
2838
2839         if (track_sense_len != 0) {
2840                 rsp->status_srb = sp;
2841                 cp->result = res;
2842         }
2843
2844         if (sense_len) {
2845                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2846                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2847                     sp->vha->host_no, cp->device->id, cp->device->lun,
2848                     cp);
2849                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2850                     cp->sense_buffer, sense_len);
2851         }
2852 }
2853
2854 struct scsi_dif_tuple {
2855         __be16 guard;       /* Checksum */
2856         __be16 app_tag;         /* APPL identifier */
2857         __be32 ref_tag;         /* Target LBA or indirect LBA */
2858 };
2859
2860 /*
2861  * Checks the guard or meta-data for the type of error
2862  * detected by the HBA. In case of errors, we set the
2863  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2864  * to indicate to the kernel that the HBA detected error.
2865  */
2866 static inline int
2867 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2868 {
2869         struct scsi_qla_host *vha = sp->vha;
2870         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2871         uint8_t         *ap = &sts24->data[12];
2872         uint8_t         *ep = &sts24->data[20];
2873         uint32_t        e_ref_tag, a_ref_tag;
2874         uint16_t        e_app_tag, a_app_tag;
2875         uint16_t        e_guard, a_guard;
2876
2877         /*
2878          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2879          * would make guard field appear at offset 2
2880          */
2881         a_guard   = get_unaligned_le16(ap + 2);
2882         a_app_tag = get_unaligned_le16(ap + 0);
2883         a_ref_tag = get_unaligned_le32(ap + 4);
2884         e_guard   = get_unaligned_le16(ep + 2);
2885         e_app_tag = get_unaligned_le16(ep + 0);
2886         e_ref_tag = get_unaligned_le32(ep + 4);
2887
2888         ql_dbg(ql_dbg_io, vha, 0x3023,
2889             "iocb(s) %p Returned STATUS.\n", sts24);
2890
2891         ql_dbg(ql_dbg_io, vha, 0x3024,
2892             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2893             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2894             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2895             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2896             a_app_tag, e_app_tag, a_guard, e_guard);
2897
2898         /*
2899          * Ignore sector if:
2900          * For type     3: ref & app tag is all 'f's
2901          * For type 0,1,2: app tag is all 'f's
2902          */
2903         if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2904             (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2905              a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2906                 uint32_t blocks_done, resid;
2907                 sector_t lba_s = scsi_get_lba(cmd);
2908
2909                 /* 2TB boundary case covered automatically with this */
2910                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2911
2912                 resid = scsi_bufflen(cmd) - (blocks_done *
2913                     cmd->device->sector_size);
2914
2915                 scsi_set_resid(cmd, resid);
2916                 cmd->result = DID_OK << 16;
2917
2918                 /* Update protection tag */
2919                 if (scsi_prot_sg_count(cmd)) {
2920                         uint32_t i, j = 0, k = 0, num_ent;
2921                         struct scatterlist *sg;
2922                         struct t10_pi_tuple *spt;
2923
2924                         /* Patch the corresponding protection tags */
2925                         scsi_for_each_prot_sg(cmd, sg,
2926                             scsi_prot_sg_count(cmd), i) {
2927                                 num_ent = sg_dma_len(sg) / 8;
2928                                 if (k + num_ent < blocks_done) {
2929                                         k += num_ent;
2930                                         continue;
2931                                 }
2932                                 j = blocks_done - k - 1;
2933                                 k = blocks_done;
2934                                 break;
2935                         }
2936
2937                         if (k != blocks_done) {
2938                                 ql_log(ql_log_warn, vha, 0x302f,
2939                                     "unexpected tag values tag:lba=%x:%llx)\n",
2940                                     e_ref_tag, (unsigned long long)lba_s);
2941                                 return 1;
2942                         }
2943
2944                         spt = page_address(sg_page(sg)) + sg->offset;
2945                         spt += j;
2946
2947                         spt->app_tag = T10_PI_APP_ESCAPE;
2948                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2949                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2950                 }
2951
2952                 return 0;
2953         }
2954
2955         /* check guard */
2956         if (e_guard != a_guard) {
2957                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
2958                 set_host_byte(cmd, DID_ABORT);
2959                 return 1;
2960         }
2961
2962         /* check ref tag */
2963         if (e_ref_tag != a_ref_tag) {
2964                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
2965                 set_host_byte(cmd, DID_ABORT);
2966                 return 1;
2967         }
2968
2969         /* check appl tag */
2970         if (e_app_tag != a_app_tag) {
2971                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
2972                 set_host_byte(cmd, DID_ABORT);
2973                 return 1;
2974         }
2975
2976         return 1;
2977 }
2978
2979 static void
2980 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2981                                   struct req_que *req, uint32_t index)
2982 {
2983         struct qla_hw_data *ha = vha->hw;
2984         srb_t *sp;
2985         uint16_t        comp_status;
2986         uint16_t        scsi_status;
2987         uint16_t thread_id;
2988         uint32_t rval = EXT_STATUS_OK;
2989         struct bsg_job *bsg_job = NULL;
2990         struct fc_bsg_request *bsg_request;
2991         struct fc_bsg_reply *bsg_reply;
2992         sts_entry_t *sts = pkt;
2993         struct sts_entry_24xx *sts24 = pkt;
2994
2995         /* Validate handle. */
2996         if (index >= req->num_outstanding_cmds) {
2997                 ql_log(ql_log_warn, vha, 0x70af,
2998                     "Invalid SCSI completion handle 0x%x.\n", index);
2999                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3000                 return;
3001         }
3002
3003         sp = req->outstanding_cmds[index];
3004         if (!sp) {
3005                 ql_log(ql_log_warn, vha, 0x70b0,
3006                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
3007                     req->id, index);
3008
3009                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3010                 return;
3011         }
3012
3013         /* Free outstanding command slot. */
3014         req->outstanding_cmds[index] = NULL;
3015         bsg_job = sp->u.bsg_job;
3016         bsg_request = bsg_job->request;
3017         bsg_reply = bsg_job->reply;
3018
3019         if (IS_FWI2_CAPABLE(ha)) {
3020                 comp_status = le16_to_cpu(sts24->comp_status);
3021                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3022         } else {
3023                 comp_status = le16_to_cpu(sts->comp_status);
3024                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3025         }
3026
3027         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3028         switch (comp_status) {
3029         case CS_COMPLETE:
3030                 if (scsi_status == 0) {
3031                         bsg_reply->reply_payload_rcv_len =
3032                                         bsg_job->reply_payload.payload_len;
3033                         vha->qla_stats.input_bytes +=
3034                                 bsg_reply->reply_payload_rcv_len;
3035                         vha->qla_stats.input_requests++;
3036                         rval = EXT_STATUS_OK;
3037                 }
3038                 goto done;
3039
3040         case CS_DATA_OVERRUN:
3041                 ql_dbg(ql_dbg_user, vha, 0x70b1,
3042                     "Command completed with data overrun thread_id=%d\n",
3043                     thread_id);
3044                 rval = EXT_STATUS_DATA_OVERRUN;
3045                 break;
3046
3047         case CS_DATA_UNDERRUN:
3048                 ql_dbg(ql_dbg_user, vha, 0x70b2,
3049                     "Command completed with data underrun thread_id=%d\n",
3050                     thread_id);
3051                 rval = EXT_STATUS_DATA_UNDERRUN;
3052                 break;
3053         case CS_BIDIR_RD_OVERRUN:
3054                 ql_dbg(ql_dbg_user, vha, 0x70b3,
3055                     "Command completed with read data overrun thread_id=%d\n",
3056                     thread_id);
3057                 rval = EXT_STATUS_DATA_OVERRUN;
3058                 break;
3059
3060         case CS_BIDIR_RD_WR_OVERRUN:
3061                 ql_dbg(ql_dbg_user, vha, 0x70b4,
3062                     "Command completed with read and write data overrun "
3063                     "thread_id=%d\n", thread_id);
3064                 rval = EXT_STATUS_DATA_OVERRUN;
3065                 break;
3066
3067         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
3068                 ql_dbg(ql_dbg_user, vha, 0x70b5,
3069                     "Command completed with read data over and write data "
3070                     "underrun thread_id=%d\n", thread_id);
3071                 rval = EXT_STATUS_DATA_OVERRUN;
3072                 break;
3073
3074         case CS_BIDIR_RD_UNDERRUN:
3075                 ql_dbg(ql_dbg_user, vha, 0x70b6,
3076                     "Command completed with read data underrun "
3077                     "thread_id=%d\n", thread_id);
3078                 rval = EXT_STATUS_DATA_UNDERRUN;
3079                 break;
3080
3081         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
3082                 ql_dbg(ql_dbg_user, vha, 0x70b7,
3083                     "Command completed with read data under and write data "
3084                     "overrun thread_id=%d\n", thread_id);
3085                 rval = EXT_STATUS_DATA_UNDERRUN;
3086                 break;
3087
3088         case CS_BIDIR_RD_WR_UNDERRUN:
3089                 ql_dbg(ql_dbg_user, vha, 0x70b8,
3090                     "Command completed with read and write data underrun "
3091                     "thread_id=%d\n", thread_id);
3092                 rval = EXT_STATUS_DATA_UNDERRUN;
3093                 break;
3094
3095         case CS_BIDIR_DMA:
3096                 ql_dbg(ql_dbg_user, vha, 0x70b9,
3097                     "Command completed with data DMA error thread_id=%d\n",
3098                     thread_id);
3099                 rval = EXT_STATUS_DMA_ERR;
3100                 break;
3101
3102         case CS_TIMEOUT:
3103                 ql_dbg(ql_dbg_user, vha, 0x70ba,
3104                     "Command completed with timeout thread_id=%d\n",
3105                     thread_id);
3106                 rval = EXT_STATUS_TIMEOUT;
3107                 break;
3108         default:
3109                 ql_dbg(ql_dbg_user, vha, 0x70bb,
3110                     "Command completed with completion status=0x%x "
3111                     "thread_id=%d\n", comp_status, thread_id);
3112                 rval = EXT_STATUS_ERR;
3113                 break;
3114         }
3115         bsg_reply->reply_payload_rcv_len = 0;
3116
3117 done:
3118         /* Return the vendor specific reply to API */
3119         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
3120         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
3121         /* Always return DID_OK, bsg will send the vendor specific response
3122          * in this case only */
3123         sp->done(sp, DID_OK << 16);
3124
3125 }
3126
3127 /**
3128  * qla2x00_status_entry() - Process a Status IOCB entry.
3129  * @vha: SCSI driver HA context
3130  * @rsp: response queue
3131  * @pkt: Entry pointer
3132  */
3133 static void
3134 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
3135 {
3136         srb_t           *sp;
3137         fc_port_t       *fcport;
3138         struct scsi_cmnd *cp;
3139         sts_entry_t *sts = pkt;
3140         struct sts_entry_24xx *sts24 = pkt;
3141         uint16_t        comp_status;
3142         uint16_t        scsi_status;
3143         uint16_t        ox_id;
3144         uint8_t         lscsi_status;
3145         int32_t         resid;
3146         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
3147             fw_resid_len;
3148         uint8_t         *rsp_info, *sense_data;
3149         struct qla_hw_data *ha = vha->hw;
3150         uint32_t handle;
3151         uint16_t que;
3152         struct req_que *req;
3153         int logit = 1;
3154         int res = 0;
3155         uint16_t state_flags = 0;
3156         uint16_t sts_qual = 0;
3157
3158         if (IS_FWI2_CAPABLE(ha)) {
3159                 comp_status = le16_to_cpu(sts24->comp_status);
3160                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3161                 state_flags = le16_to_cpu(sts24->state_flags);
3162         } else {
3163                 comp_status = le16_to_cpu(sts->comp_status);
3164                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3165         }
3166         handle = (uint32_t) LSW(sts->handle);
3167         que = MSW(sts->handle);
3168         req = ha->req_q_map[que];
3169
3170         /* Check for invalid queue pointer */
3171         if (req == NULL ||
3172             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
3173                 ql_dbg(ql_dbg_io, vha, 0x3059,
3174                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
3175                     "que=%u.\n", sts->handle, req, que);
3176                 return;
3177         }
3178
3179         /* Validate handle. */
3180         if (handle < req->num_outstanding_cmds) {
3181                 sp = req->outstanding_cmds[handle];
3182                 if (!sp) {
3183                         ql_dbg(ql_dbg_io, vha, 0x3075,
3184                             "%s(%ld): Already returned command for status handle (0x%x).\n",
3185                             __func__, vha->host_no, sts->handle);
3186                         return;
3187                 }
3188         } else {
3189                 ql_dbg(ql_dbg_io, vha, 0x3017,
3190                     "Invalid status handle, out of range (0x%x).\n",
3191                     sts->handle);
3192
3193                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3194                         if (IS_P3P_TYPE(ha))
3195                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3196                         else
3197                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3198                         qla2xxx_wake_dpc(vha);
3199                 }
3200                 return;
3201         }
3202         qla_put_fw_resources(sp->qpair, &sp->iores);
3203
3204         if (sp->cmd_type != TYPE_SRB) {
3205                 req->outstanding_cmds[handle] = NULL;
3206                 ql_dbg(ql_dbg_io, vha, 0x3015,
3207                     "Unknown sp->cmd_type %x %p).\n",
3208                     sp->cmd_type, sp);
3209                 return;
3210         }
3211
3212         /* NVME completion. */
3213         if (sp->type == SRB_NVME_CMD) {
3214                 req->outstanding_cmds[handle] = NULL;
3215                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
3216                 return;
3217         }
3218
3219         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
3220                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
3221                 return;
3222         }
3223
3224         /* Task Management completion. */
3225         if (sp->type == SRB_TM_CMD) {
3226                 qla24xx_tm_iocb_entry(vha, req, pkt);
3227                 return;
3228         }
3229
3230         /* Fast path completion. */
3231         qla_chk_edif_rx_sa_delete_pending(vha, sp, sts24);
3232         sp->qpair->cmd_completion_cnt++;
3233
3234         if (comp_status == CS_COMPLETE && scsi_status == 0) {
3235                 qla2x00_process_completed_request(vha, req, handle);
3236
3237                 return;
3238         }
3239
3240         req->outstanding_cmds[handle] = NULL;
3241         cp = GET_CMD_SP(sp);
3242         if (cp == NULL) {
3243                 ql_dbg(ql_dbg_io, vha, 0x3018,
3244                     "Command already returned (0x%x/%p).\n",
3245                     sts->handle, sp);
3246
3247                 return;
3248         }
3249
3250         lscsi_status = scsi_status & STATUS_MASK;
3251
3252         fcport = sp->fcport;
3253
3254         ox_id = 0;
3255         sense_len = par_sense_len = rsp_info_len = resid_len =
3256             fw_resid_len = 0;
3257         if (IS_FWI2_CAPABLE(ha)) {
3258                 if (scsi_status & SS_SENSE_LEN_VALID)
3259                         sense_len = le32_to_cpu(sts24->sense_len);
3260                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3261                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
3262                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
3263                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
3264                 if (comp_status == CS_DATA_UNDERRUN)
3265                         fw_resid_len = le32_to_cpu(sts24->residual_len);
3266                 rsp_info = sts24->data;
3267                 sense_data = sts24->data;
3268                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
3269                 ox_id = le16_to_cpu(sts24->ox_id);
3270                 par_sense_len = sizeof(sts24->data);
3271                 sts_qual = le16_to_cpu(sts24->status_qualifier);
3272         } else {
3273                 if (scsi_status & SS_SENSE_LEN_VALID)
3274                         sense_len = le16_to_cpu(sts->req_sense_length);
3275                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3276                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
3277                 resid_len = le32_to_cpu(sts->residual_length);
3278                 rsp_info = sts->rsp_info;
3279                 sense_data = sts->req_sense_data;
3280                 par_sense_len = sizeof(sts->req_sense_data);
3281         }
3282
3283         /* Check for any FCP transport errors. */
3284         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
3285                 /* Sense data lies beyond any FCP RESPONSE data. */
3286                 if (IS_FWI2_CAPABLE(ha)) {
3287                         sense_data += rsp_info_len;
3288                         par_sense_len -= rsp_info_len;
3289                 }
3290                 if (rsp_info_len > 3 && rsp_info[3]) {
3291                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
3292                             "FCP I/O protocol failure (0x%x/0x%x).\n",
3293                             rsp_info_len, rsp_info[3]);
3294
3295                         res = DID_BUS_BUSY << 16;
3296                         goto out;
3297                 }
3298         }
3299
3300         /* Check for overrun. */
3301         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3302             scsi_status & SS_RESIDUAL_OVER)
3303                 comp_status = CS_DATA_OVERRUN;
3304
3305         /*
3306          * Check retry_delay_timer value if we receive a busy or
3307          * queue full.
3308          */
3309         if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3310                      lscsi_status == SAM_STAT_BUSY))
3311                 qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3312
3313         /*
3314          * Based on Host and scsi status generate status code for Linux
3315          */
3316         switch (comp_status) {
3317         case CS_COMPLETE:
3318         case CS_QUEUE_FULL:
3319                 if (scsi_status == 0) {
3320                         res = DID_OK << 16;
3321                         break;
3322                 }
3323                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3324                         resid = resid_len;
3325                         scsi_set_resid(cp, resid);
3326
3327                         if (!lscsi_status &&
3328                             ((unsigned)(scsi_bufflen(cp) - resid) <
3329                              cp->underflow)) {
3330                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3331                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3332                                     resid, scsi_bufflen(cp));
3333
3334                                 res = DID_ERROR << 16;
3335                                 break;
3336                         }
3337                 }
3338                 res = DID_OK << 16 | lscsi_status;
3339
3340                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3341                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3342                             "QUEUE FULL detected.\n");
3343                         break;
3344                 }
3345                 logit = 0;
3346                 if (lscsi_status != SS_CHECK_CONDITION)
3347                         break;
3348
3349                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3350                 if (!(scsi_status & SS_SENSE_LEN_VALID))
3351                         break;
3352
3353                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3354                     rsp, res);
3355                 break;
3356
3357         case CS_DATA_UNDERRUN:
3358                 /* Use F/W calculated residual length. */
3359                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3360                 scsi_set_resid(cp, resid);
3361                 if (scsi_status & SS_RESIDUAL_UNDER) {
3362                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3363                                 ql_log(ql_log_warn, fcport->vha, 0x301d,
3364                                        "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3365                                        resid, scsi_bufflen(cp));
3366
3367                                 res = DID_ERROR << 16 | lscsi_status;
3368                                 goto check_scsi_status;
3369                         }
3370
3371                         if (!lscsi_status &&
3372                             ((unsigned)(scsi_bufflen(cp) - resid) <
3373                             cp->underflow)) {
3374                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3375                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3376                                     resid, scsi_bufflen(cp));
3377
3378                                 res = DID_ERROR << 16;
3379                                 break;
3380                         }
3381                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3382                             lscsi_status != SAM_STAT_BUSY) {
3383                         /*
3384                          * scsi status of task set and busy are considered to be
3385                          * task not completed.
3386                          */
3387
3388                         ql_log(ql_log_warn, fcport->vha, 0x301f,
3389                                "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3390                                resid, scsi_bufflen(cp));
3391
3392                         vha->interface_err_cnt++;
3393
3394                         res = DID_ERROR << 16 | lscsi_status;
3395                         goto check_scsi_status;
3396                 } else {
3397                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3398                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3399                             scsi_status, lscsi_status);
3400                 }
3401
3402                 res = DID_OK << 16 | lscsi_status;
3403                 logit = 0;
3404
3405 check_scsi_status:
3406                 /*
3407                  * Check to see if SCSI Status is non zero. If so report SCSI
3408                  * Status.
3409                  */
3410                 if (lscsi_status != 0) {
3411                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3412                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3413                                     "QUEUE FULL detected.\n");
3414                                 logit = 1;
3415                                 break;
3416                         }
3417                         if (lscsi_status != SS_CHECK_CONDITION)
3418                                 break;
3419
3420                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3421                         if (!(scsi_status & SS_SENSE_LEN_VALID))
3422                                 break;
3423
3424                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
3425                             sense_len, rsp, res);
3426                 }
3427                 break;
3428
3429         case CS_PORT_LOGGED_OUT:
3430         case CS_PORT_CONFIG_CHG:
3431         case CS_PORT_BUSY:
3432         case CS_INCOMPLETE:
3433         case CS_PORT_UNAVAILABLE:
3434         case CS_TIMEOUT:
3435         case CS_RESET:
3436         case CS_EDIF_INV_REQ:
3437
3438                 /*
3439                  * We are going to have the fc class block the rport
3440                  * while we try to recover so instruct the mid layer
3441                  * to requeue until the class decides how to handle this.
3442                  */
3443                 res = DID_TRANSPORT_DISRUPTED << 16;
3444
3445                 if (comp_status == CS_TIMEOUT) {
3446                         if (IS_FWI2_CAPABLE(ha))
3447                                 break;
3448                         else if ((le16_to_cpu(sts->status_flags) &
3449                             SF_LOGOUT_SENT) == 0)
3450                                 break;
3451                 }
3452
3453                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
3454                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3455                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
3456                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3457                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
3458                                 port_state_str[FCS_ONLINE],
3459                                 comp_status);
3460
3461                         qlt_schedule_sess_for_deletion(fcport);
3462                 }
3463
3464                 break;
3465
3466         case CS_ABORTED:
3467                 res = DID_RESET << 16;
3468                 break;
3469
3470         case CS_DIF_ERROR:
3471                 logit = qla2x00_handle_dif_error(sp, sts24);
3472                 res = cp->result;
3473                 break;
3474
3475         case CS_TRANSPORT:
3476                 res = DID_ERROR << 16;
3477                 vha->hw_err_cnt++;
3478
3479                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3480                         break;
3481
3482                 if (state_flags & BIT_4)
3483                         scmd_printk(KERN_WARNING, cp,
3484                             "Unsupported device '%s' found.\n",
3485                             cp->device->vendor);
3486                 break;
3487
3488         case CS_DMA:
3489                 ql_log(ql_log_info, fcport->vha, 0x3022,
3490                     "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3491                     comp_status, scsi_status, res, vha->host_no,
3492                     cp->device->id, cp->device->lun, fcport->d_id.b24,
3493                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3494                     resid_len, fw_resid_len, sp, cp);
3495                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3496                     pkt, sizeof(*sts24));
3497                 res = DID_ERROR << 16;
3498                 vha->hw_err_cnt++;
3499                 break;
3500         default:
3501                 res = DID_ERROR << 16;
3502                 break;
3503         }
3504
3505 out:
3506         if (logit)
3507                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3508                        "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3509                        comp_status, scsi_status, res, vha->host_no,
3510                        cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3511                        fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3512                        cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3513                        resid_len, fw_resid_len, sp, cp);
3514
3515         if (rsp->status_srb == NULL)
3516                 sp->done(sp, res);
3517 }
3518
3519 /**
3520  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3521  * @rsp: response queue
3522  * @pkt: Entry pointer
3523  *
3524  * Extended sense data.
3525  */
3526 static void
3527 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3528 {
3529         uint8_t sense_sz = 0;
3530         struct qla_hw_data *ha = rsp->hw;
3531         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3532         srb_t *sp = rsp->status_srb;
3533         struct scsi_cmnd *cp;
3534         uint32_t sense_len;
3535         uint8_t *sense_ptr;
3536
3537         if (!sp || !GET_CMD_SENSE_LEN(sp))
3538                 return;
3539
3540         sense_len = GET_CMD_SENSE_LEN(sp);
3541         sense_ptr = GET_CMD_SENSE_PTR(sp);
3542
3543         cp = GET_CMD_SP(sp);
3544         if (cp == NULL) {
3545                 ql_log(ql_log_warn, vha, 0x3025,
3546                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3547
3548                 rsp->status_srb = NULL;
3549                 return;
3550         }
3551
3552         if (sense_len > sizeof(pkt->data))
3553                 sense_sz = sizeof(pkt->data);
3554         else
3555                 sense_sz = sense_len;
3556
3557         /* Move sense data. */
3558         if (IS_FWI2_CAPABLE(ha))
3559                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3560         memcpy(sense_ptr, pkt->data, sense_sz);
3561         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3562                 sense_ptr, sense_sz);
3563
3564         sense_len -= sense_sz;
3565         sense_ptr += sense_sz;
3566
3567         SET_CMD_SENSE_PTR(sp, sense_ptr);
3568         SET_CMD_SENSE_LEN(sp, sense_len);
3569
3570         /* Place command on done queue. */
3571         if (sense_len == 0) {
3572                 rsp->status_srb = NULL;
3573                 sp->done(sp, cp->result);
3574         }
3575 }
3576
3577 /**
3578  * qla2x00_error_entry() - Process an error entry.
3579  * @vha: SCSI driver HA context
3580  * @rsp: response queue
3581  * @pkt: Entry pointer
3582  * return : 1=allow further error analysis. 0=no additional error analysis.
3583  */
3584 static int
3585 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3586 {
3587         srb_t *sp;
3588         struct qla_hw_data *ha = vha->hw;
3589         const char func[] = "ERROR-IOCB";
3590         uint16_t que = MSW(pkt->handle);
3591         struct req_que *req = NULL;
3592         int res = DID_ERROR << 16;
3593
3594         ql_dbg(ql_dbg_async, vha, 0x502a,
3595             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3596             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3597
3598         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3599                 goto fatal;
3600
3601         req = ha->req_q_map[que];
3602
3603         if (pkt->entry_status & RF_BUSY)
3604                 res = DID_BUS_BUSY << 16;
3605
3606         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3607                 return 0;
3608
3609         switch (pkt->entry_type) {
3610         case NOTIFY_ACK_TYPE:
3611         case STATUS_TYPE:
3612         case STATUS_CONT_TYPE:
3613         case LOGINOUT_PORT_IOCB_TYPE:
3614         case CT_IOCB_TYPE:
3615         case ELS_IOCB_TYPE:
3616         case ABORT_IOCB_TYPE:
3617         case MBX_IOCB_TYPE:
3618         default:
3619                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3620                 if (sp) {
3621                         sp->done(sp, res);
3622                         return 0;
3623                 }
3624                 break;
3625
3626         case SA_UPDATE_IOCB_TYPE:
3627         case ABTS_RESP_24XX:
3628         case CTIO_TYPE7:
3629         case CTIO_CRC2:
3630                 return 1;
3631         }
3632 fatal:
3633         ql_log(ql_log_warn, vha, 0x5030,
3634             "Error entry - invalid handle/queue (%04x).\n", que);
3635         return 0;
3636 }
3637
3638 /**
3639  * qla24xx_mbx_completion() - Process mailbox command completions.
3640  * @vha: SCSI driver HA context
3641  * @mb0: Mailbox0 register
3642  */
3643 static void
3644 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3645 {
3646         uint16_t        cnt;
3647         uint32_t        mboxes;
3648         __le16 __iomem *wptr;
3649         struct qla_hw_data *ha = vha->hw;
3650         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3651
3652         /* Read all mbox registers? */
3653         WARN_ON_ONCE(ha->mbx_count > 32);
3654         mboxes = (1ULL << ha->mbx_count) - 1;
3655         if (!ha->mcp)
3656                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3657         else
3658                 mboxes = ha->mcp->in_mb;
3659
3660         /* Load return mailbox registers. */
3661         ha->flags.mbox_int = 1;
3662         ha->mailbox_out[0] = mb0;
3663         mboxes >>= 1;
3664         wptr = &reg->mailbox1;
3665
3666         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3667                 if (mboxes & BIT_0)
3668                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
3669
3670                 mboxes >>= 1;
3671                 wptr++;
3672         }
3673 }
3674
3675 static void
3676 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3677         struct abort_entry_24xx *pkt)
3678 {
3679         const char func[] = "ABT_IOCB";
3680         srb_t *sp;
3681         srb_t *orig_sp = NULL;
3682         struct srb_iocb *abt;
3683
3684         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3685         if (!sp)
3686                 return;
3687
3688         abt = &sp->u.iocb_cmd;
3689         abt->u.abt.comp_status = pkt->comp_status;
3690         orig_sp = sp->cmd_sp;
3691         /* Need to pass original sp */
3692         if (orig_sp)
3693                 qla_nvme_abort_process_comp_status(pkt, orig_sp);
3694
3695         sp->done(sp, 0);
3696 }
3697
3698 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3699     struct pt_ls4_request *pkt, struct req_que *req)
3700 {
3701         srb_t *sp;
3702         const char func[] = "LS4_IOCB";
3703         uint16_t comp_status;
3704
3705         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3706         if (!sp)
3707                 return;
3708
3709         comp_status = le16_to_cpu(pkt->status);
3710         sp->done(sp, comp_status);
3711 }
3712
3713 /**
3714  * qla_chk_cont_iocb_avail - check for all continuation iocbs are available
3715  *   before iocb processing can start.
3716  * @vha: host adapter pointer
3717  * @rsp: respond queue
3718  * @pkt: head iocb describing how many continuation iocb
3719  * Return: 0 all iocbs has arrived, xx- all iocbs have not arrived.
3720  */
3721 static int qla_chk_cont_iocb_avail(struct scsi_qla_host *vha,
3722         struct rsp_que *rsp, response_t *pkt, u32 rsp_q_in)
3723 {
3724         int start_pkt_ring_index;
3725         u32 iocb_cnt = 0;
3726         int rc = 0;
3727
3728         if (pkt->entry_count == 1)
3729                 return rc;
3730
3731         /* ring_index was pre-increment. set it back to current pkt */
3732         if (rsp->ring_index == 0)
3733                 start_pkt_ring_index = rsp->length - 1;
3734         else
3735                 start_pkt_ring_index = rsp->ring_index - 1;
3736
3737         if (rsp_q_in < start_pkt_ring_index)
3738                 /* q in ptr is wrapped */
3739                 iocb_cnt = rsp->length - start_pkt_ring_index + rsp_q_in;
3740         else
3741                 iocb_cnt = rsp_q_in - start_pkt_ring_index;
3742
3743         if (iocb_cnt < pkt->entry_count)
3744                 rc = -EIO;
3745
3746         ql_dbg(ql_dbg_init, vha, 0x5091,
3747                "%s - ring %p pkt %p entry count %d iocb_cnt %d rsp_q_in %d rc %d\n",
3748                __func__, rsp->ring, pkt, pkt->entry_count, iocb_cnt, rsp_q_in, rc);
3749
3750         return rc;
3751 }
3752
3753 /**
3754  * qla24xx_process_response_queue() - Process response queue entries.
3755  * @vha: SCSI driver HA context
3756  * @rsp: response queue
3757  */
3758 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3759         struct rsp_que *rsp)
3760 {
3761         struct sts_entry_24xx *pkt;
3762         struct qla_hw_data *ha = vha->hw;
3763         struct purex_entry_24xx *purex_entry;
3764         struct purex_item *pure_item;
3765         u16 rsp_in = 0, cur_ring_index;
3766         int is_shadow_hba;
3767
3768         if (!ha->flags.fw_started)
3769                 return;
3770
3771         if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
3772                 rsp->qpair->rcv_intr = 1;
3773         }
3774
3775 #define __update_rsp_in(_is_shadow_hba, _rsp, _rsp_in)                  \
3776         do {                                                            \
3777                 _rsp_in = _is_shadow_hba ? *(_rsp)->in_ptr :            \
3778                                 rd_reg_dword_relaxed((_rsp)->rsp_q_in); \
3779         } while (0)
3780
3781         is_shadow_hba = IS_SHADOW_REG_CAPABLE(ha);
3782
3783         __update_rsp_in(is_shadow_hba, rsp, rsp_in);
3784
3785         while (rsp->ring_index != rsp_in &&
3786                        rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3787                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3788                 cur_ring_index = rsp->ring_index;
3789
3790                 rsp->ring_index++;
3791                 if (rsp->ring_index == rsp->length) {
3792                         rsp->ring_index = 0;
3793                         rsp->ring_ptr = rsp->ring;
3794                 } else {
3795                         rsp->ring_ptr++;
3796                 }
3797
3798                 if (pkt->entry_status != 0) {
3799                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3800                                 goto process_err;
3801
3802                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3803                         wmb();
3804                         continue;
3805                 }
3806 process_err:
3807
3808                 switch (pkt->entry_type) {
3809                 case STATUS_TYPE:
3810                         qla2x00_status_entry(vha, rsp, pkt);
3811                         break;
3812                 case STATUS_CONT_TYPE:
3813                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3814                         break;
3815                 case VP_RPT_ID_IOCB_TYPE:
3816                         qla24xx_report_id_acquisition(vha,
3817                             (struct vp_rpt_id_entry_24xx *)pkt);
3818                         break;
3819                 case LOGINOUT_PORT_IOCB_TYPE:
3820                         qla24xx_logio_entry(vha, rsp->req,
3821                             (struct logio_entry_24xx *)pkt);
3822                         break;
3823                 case CT_IOCB_TYPE:
3824                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3825                         break;
3826                 case ELS_IOCB_TYPE:
3827                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3828                         break;
3829                 case ABTS_RECV_24XX:
3830                         if (qla_ini_mode_enabled(vha)) {
3831                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3832                                 if (!pure_item)
3833                                         break;
3834                                 qla24xx_queue_purex_item(vha, pure_item,
3835                                                          qla24xx_process_abts);
3836                                 break;
3837                         }
3838                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3839                             IS_QLA28XX(ha)) {
3840                                 /* ensure that the ATIO queue is empty */
3841                                 qlt_handle_abts_recv(vha, rsp,
3842                                     (response_t *)pkt);
3843                                 break;
3844                         } else {
3845                                 qlt_24xx_process_atio_queue(vha, 1);
3846                         }
3847                         fallthrough;
3848                 case ABTS_RESP_24XX:
3849                 case CTIO_TYPE7:
3850                 case CTIO_CRC2:
3851                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3852                         break;
3853                 case PT_LS4_REQUEST:
3854                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3855                             rsp->req);
3856                         break;
3857                 case NOTIFY_ACK_TYPE:
3858                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3859                                 qlt_response_pkt_all_vps(vha, rsp,
3860                                     (response_t *)pkt);
3861                         else
3862                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3863                                         (struct nack_to_isp *)pkt);
3864                         break;
3865                 case MARKER_TYPE:
3866                         /* Do nothing in this case, this check is to prevent it
3867                          * from falling into default case
3868                          */
3869                         break;
3870                 case ABORT_IOCB_TYPE:
3871                         qla24xx_abort_iocb_entry(vha, rsp->req,
3872                             (struct abort_entry_24xx *)pkt);
3873                         break;
3874                 case MBX_IOCB_TYPE:
3875                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3876                             (struct mbx_24xx_entry *)pkt);
3877                         break;
3878                 case VP_CTRL_IOCB_TYPE:
3879                         qla_ctrlvp_completed(vha, rsp->req,
3880                             (struct vp_ctrl_entry_24xx *)pkt);
3881                         break;
3882                 case PUREX_IOCB_TYPE:
3883                         purex_entry = (void *)pkt;
3884                         switch (purex_entry->els_frame_payload[3]) {
3885                         case ELS_RDP:
3886                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3887                                 if (!pure_item)
3888                                         break;
3889                                 qla24xx_queue_purex_item(vha, pure_item,
3890                                                  qla24xx_process_purex_rdp);
3891                                 break;
3892                         case ELS_FPIN:
3893                                 if (!vha->hw->flags.scm_enabled) {
3894                                         ql_log(ql_log_warn, vha, 0x5094,
3895                                                "SCM not active for this port\n");
3896                                         break;
3897                                 }
3898                                 pure_item = qla27xx_copy_fpin_pkt(vha,
3899                                                           (void **)&pkt, &rsp);
3900                                 __update_rsp_in(is_shadow_hba, rsp, rsp_in);
3901                                 if (!pure_item)
3902                                         break;
3903                                 qla24xx_queue_purex_item(vha, pure_item,
3904                                                  qla27xx_process_purex_fpin);
3905                                 break;
3906
3907                         case ELS_AUTH_ELS:
3908                                 if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt, rsp_in)) {
3909                                         /*
3910                                          * ring_ptr and ring_index were
3911                                          * pre-incremented above. Reset them
3912                                          * back to current. Wait for next
3913                                          * interrupt with all IOCBs to arrive
3914                                          * and re-process.
3915                                          */
3916                                         rsp->ring_ptr = (response_t *)pkt;
3917                                         rsp->ring_index = cur_ring_index;
3918
3919                                         ql_dbg(ql_dbg_init, vha, 0x5091,
3920                                             "Defer processing ELS opcode %#x...\n",
3921                                             purex_entry->els_frame_payload[3]);
3922                                         return;
3923                                 }
3924                                 qla24xx_auth_els(vha, (void **)&pkt, &rsp);
3925                                 break;
3926                         default:
3927                                 ql_log(ql_log_warn, vha, 0x509c,
3928                                        "Discarding ELS Request opcode 0x%x\n",
3929                                        purex_entry->els_frame_payload[3]);
3930                         }
3931                         break;
3932                 case SA_UPDATE_IOCB_TYPE:
3933                         qla28xx_sa_update_iocb_entry(vha, rsp->req,
3934                                 (struct sa_update_28xx *)pkt);
3935                         break;
3936
3937                 default:
3938                         /* Type Not Supported. */
3939                         ql_dbg(ql_dbg_async, vha, 0x5042,
3940                                "Received unknown response pkt type 0x%x entry status=%x.\n",
3941                                pkt->entry_type, pkt->entry_status);
3942                         break;
3943                 }
3944                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3945                 wmb();
3946         }
3947
3948         /* Adjust ring index */
3949         if (IS_P3P_TYPE(ha)) {
3950                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3951
3952                 wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3953         } else {
3954                 wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3955         }
3956 }
3957
3958 static void
3959 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3960 {
3961         int rval;
3962         uint32_t cnt;
3963         struct qla_hw_data *ha = vha->hw;
3964         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3965
3966         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3967             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3968                 return;
3969
3970         rval = QLA_SUCCESS;
3971         wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3972         rd_reg_dword(&reg->iobase_addr);
3973         wrt_reg_dword(&reg->iobase_window, 0x0001);
3974         for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3975             rval == QLA_SUCCESS; cnt--) {
3976                 if (cnt) {
3977                         wrt_reg_dword(&reg->iobase_window, 0x0001);
3978                         udelay(10);
3979                 } else
3980                         rval = QLA_FUNCTION_TIMEOUT;
3981         }
3982         if (rval == QLA_SUCCESS)
3983                 goto next_test;
3984
3985         rval = QLA_SUCCESS;
3986         wrt_reg_dword(&reg->iobase_window, 0x0003);
3987         for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3988             rval == QLA_SUCCESS; cnt--) {
3989                 if (cnt) {
3990                         wrt_reg_dword(&reg->iobase_window, 0x0003);
3991                         udelay(10);
3992                 } else
3993                         rval = QLA_FUNCTION_TIMEOUT;
3994         }
3995         if (rval != QLA_SUCCESS)
3996                 goto done;
3997
3998 next_test:
3999         if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
4000                 ql_log(ql_log_info, vha, 0x504c,
4001                     "Additional code -- 0x55AA.\n");
4002
4003 done:
4004         wrt_reg_dword(&reg->iobase_window, 0x0000);
4005         rd_reg_dword(&reg->iobase_window);
4006 }
4007
4008 /**
4009  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
4010  * @irq: interrupt number
4011  * @dev_id: SCSI driver HA context
4012  *
4013  * Called by system whenever the host adapter generates an interrupt.
4014  *
4015  * Returns handled flag.
4016  */
4017 irqreturn_t
4018 qla24xx_intr_handler(int irq, void *dev_id)
4019 {
4020         scsi_qla_host_t *vha;
4021         struct qla_hw_data *ha;
4022         struct device_reg_24xx __iomem *reg;
4023         int             status;
4024         unsigned long   iter;
4025         uint32_t        stat;
4026         uint32_t        hccr;
4027         uint16_t        mb[8];
4028         struct rsp_que *rsp;
4029         unsigned long   flags;
4030         bool process_atio = false;
4031
4032         rsp = (struct rsp_que *) dev_id;
4033         if (!rsp) {
4034                 ql_log(ql_log_info, NULL, 0x5059,
4035                     "%s: NULL response queue pointer.\n", __func__);
4036                 return IRQ_NONE;
4037         }
4038
4039         ha = rsp->hw;
4040         reg = &ha->iobase->isp24;
4041         status = 0;
4042
4043         if (unlikely(pci_channel_offline(ha->pdev)))
4044                 return IRQ_HANDLED;
4045
4046         spin_lock_irqsave(&ha->hardware_lock, flags);
4047         vha = pci_get_drvdata(ha->pdev);
4048         for (iter = 50; iter--; ) {
4049                 stat = rd_reg_dword(&reg->host_status);
4050                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
4051                         break;
4052                 if (stat & HSRX_RISC_PAUSED) {
4053                         if (unlikely(pci_channel_offline(ha->pdev)))
4054                                 break;
4055
4056                         hccr = rd_reg_dword(&reg->hccr);
4057
4058                         ql_log(ql_log_warn, vha, 0x504b,
4059                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
4060                             hccr);
4061
4062                         qla2xxx_check_risc_status(vha);
4063
4064                         ha->isp_ops->fw_dump(vha);
4065                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4066                         break;
4067                 } else if ((stat & HSRX_RISC_INT) == 0)
4068                         break;
4069
4070                 switch (stat & 0xff) {
4071                 case INTR_ROM_MB_SUCCESS:
4072                 case INTR_ROM_MB_FAILED:
4073                 case INTR_MB_SUCCESS:
4074                 case INTR_MB_FAILED:
4075                         qla24xx_mbx_completion(vha, MSW(stat));
4076                         status |= MBX_INTERRUPT;
4077
4078                         break;
4079                 case INTR_ASYNC_EVENT:
4080                         mb[0] = MSW(stat);
4081                         mb[1] = rd_reg_word(&reg->mailbox1);
4082                         mb[2] = rd_reg_word(&reg->mailbox2);
4083                         mb[3] = rd_reg_word(&reg->mailbox3);
4084                         qla2x00_async_event(vha, rsp, mb);
4085                         break;
4086                 case INTR_RSP_QUE_UPDATE:
4087                 case INTR_RSP_QUE_UPDATE_83XX:
4088                         qla24xx_process_response_queue(vha, rsp);
4089                         break;
4090                 case INTR_ATIO_QUE_UPDATE_27XX:
4091                 case INTR_ATIO_QUE_UPDATE:
4092                         process_atio = true;
4093                         break;
4094                 case INTR_ATIO_RSP_QUE_UPDATE:
4095                         process_atio = true;
4096                         qla24xx_process_response_queue(vha, rsp);
4097                         break;
4098                 default:
4099                         ql_dbg(ql_dbg_async, vha, 0x504f,
4100                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
4101                         break;
4102                 }
4103                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4104                 rd_reg_dword_relaxed(&reg->hccr);
4105                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
4106                         ndelay(3500);
4107         }
4108         qla2x00_handle_mbx_completion(ha, status);
4109         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4110
4111         if (process_atio) {
4112                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4113                 qlt_24xx_process_atio_queue(vha, 0);
4114                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4115         }
4116
4117         return IRQ_HANDLED;
4118 }
4119
4120 static irqreturn_t
4121 qla24xx_msix_rsp_q(int irq, void *dev_id)
4122 {
4123         struct qla_hw_data *ha;
4124         struct rsp_que *rsp;
4125         struct device_reg_24xx __iomem *reg;
4126         struct scsi_qla_host *vha;
4127         unsigned long flags;
4128
4129         rsp = (struct rsp_que *) dev_id;
4130         if (!rsp) {
4131                 ql_log(ql_log_info, NULL, 0x505a,
4132                     "%s: NULL response queue pointer.\n", __func__);
4133                 return IRQ_NONE;
4134         }
4135         ha = rsp->hw;
4136         reg = &ha->iobase->isp24;
4137
4138         spin_lock_irqsave(&ha->hardware_lock, flags);
4139
4140         vha = pci_get_drvdata(ha->pdev);
4141         qla24xx_process_response_queue(vha, rsp);
4142         if (!ha->flags.disable_msix_handshake) {
4143                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4144                 rd_reg_dword_relaxed(&reg->hccr);
4145         }
4146         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4147
4148         return IRQ_HANDLED;
4149 }
4150
4151 static irqreturn_t
4152 qla24xx_msix_default(int irq, void *dev_id)
4153 {
4154         scsi_qla_host_t *vha;
4155         struct qla_hw_data *ha;
4156         struct rsp_que *rsp;
4157         struct device_reg_24xx __iomem *reg;
4158         int             status;
4159         uint32_t        stat;
4160         uint32_t        hccr;
4161         uint16_t        mb[8];
4162         unsigned long flags;
4163         bool process_atio = false;
4164
4165         rsp = (struct rsp_que *) dev_id;
4166         if (!rsp) {
4167                 ql_log(ql_log_info, NULL, 0x505c,
4168                     "%s: NULL response queue pointer.\n", __func__);
4169                 return IRQ_NONE;
4170         }
4171         ha = rsp->hw;
4172         reg = &ha->iobase->isp24;
4173         status = 0;
4174
4175         spin_lock_irqsave(&ha->hardware_lock, flags);
4176         vha = pci_get_drvdata(ha->pdev);
4177         do {
4178                 stat = rd_reg_dword(&reg->host_status);
4179                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
4180                         break;
4181                 if (stat & HSRX_RISC_PAUSED) {
4182                         if (unlikely(pci_channel_offline(ha->pdev)))
4183                                 break;
4184
4185                         hccr = rd_reg_dword(&reg->hccr);
4186
4187                         ql_log(ql_log_info, vha, 0x5050,
4188                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
4189                             hccr);
4190
4191                         qla2xxx_check_risc_status(vha);
4192                         vha->hw_err_cnt++;
4193
4194                         ha->isp_ops->fw_dump(vha);
4195                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4196                         break;
4197                 } else if ((stat & HSRX_RISC_INT) == 0)
4198                         break;
4199
4200                 switch (stat & 0xff) {
4201                 case INTR_ROM_MB_SUCCESS:
4202                 case INTR_ROM_MB_FAILED:
4203                 case INTR_MB_SUCCESS:
4204                 case INTR_MB_FAILED:
4205                         qla24xx_mbx_completion(vha, MSW(stat));
4206                         status |= MBX_INTERRUPT;
4207
4208                         break;
4209                 case INTR_ASYNC_EVENT:
4210                         mb[0] = MSW(stat);
4211                         mb[1] = rd_reg_word(&reg->mailbox1);
4212                         mb[2] = rd_reg_word(&reg->mailbox2);
4213                         mb[3] = rd_reg_word(&reg->mailbox3);
4214                         qla2x00_async_event(vha, rsp, mb);
4215                         break;
4216                 case INTR_RSP_QUE_UPDATE:
4217                 case INTR_RSP_QUE_UPDATE_83XX:
4218                         qla24xx_process_response_queue(vha, rsp);
4219                         break;
4220                 case INTR_ATIO_QUE_UPDATE_27XX:
4221                 case INTR_ATIO_QUE_UPDATE:
4222                         process_atio = true;
4223                         break;
4224                 case INTR_ATIO_RSP_QUE_UPDATE:
4225                         process_atio = true;
4226                         qla24xx_process_response_queue(vha, rsp);
4227                         break;
4228                 default:
4229                         ql_dbg(ql_dbg_async, vha, 0x5051,
4230                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
4231                         break;
4232                 }
4233                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4234         } while (0);
4235         qla2x00_handle_mbx_completion(ha, status);
4236         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4237
4238         if (process_atio) {
4239                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4240                 qlt_24xx_process_atio_queue(vha, 0);
4241                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4242         }
4243
4244         return IRQ_HANDLED;
4245 }
4246
4247 irqreturn_t
4248 qla2xxx_msix_rsp_q(int irq, void *dev_id)
4249 {
4250         struct qla_hw_data *ha;
4251         struct qla_qpair *qpair;
4252
4253         qpair = dev_id;
4254         if (!qpair) {
4255                 ql_log(ql_log_info, NULL, 0x505b,
4256                     "%s: NULL response queue pointer.\n", __func__);
4257                 return IRQ_NONE;
4258         }
4259         ha = qpair->hw;
4260
4261         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
4262
4263         return IRQ_HANDLED;
4264 }
4265
4266 irqreturn_t
4267 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
4268 {
4269         struct qla_hw_data *ha;
4270         struct qla_qpair *qpair;
4271         struct device_reg_24xx __iomem *reg;
4272         unsigned long flags;
4273
4274         qpair = dev_id;
4275         if (!qpair) {
4276                 ql_log(ql_log_info, NULL, 0x505b,
4277                     "%s: NULL response queue pointer.\n", __func__);
4278                 return IRQ_NONE;
4279         }
4280         ha = qpair->hw;
4281
4282         reg = &ha->iobase->isp24;
4283         spin_lock_irqsave(&ha->hardware_lock, flags);
4284         wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4285         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4286
4287         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
4288
4289         return IRQ_HANDLED;
4290 }
4291
4292 /* Interrupt handling helpers. */
4293
4294 struct qla_init_msix_entry {
4295         const char *name;
4296         irq_handler_t handler;
4297 };
4298
4299 static const struct qla_init_msix_entry msix_entries[] = {
4300         { "default", qla24xx_msix_default },
4301         { "rsp_q", qla24xx_msix_rsp_q },
4302         { "atio_q", qla83xx_msix_atio_q },
4303         { "qpair_multiq", qla2xxx_msix_rsp_q },
4304         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
4305 };
4306
4307 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
4308         { "qla2xxx (default)", qla82xx_msix_default },
4309         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
4310 };
4311
4312 static int
4313 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
4314 {
4315         int i, ret;
4316         struct qla_msix_entry *qentry;
4317         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4318         int min_vecs = QLA_BASE_VECTORS;
4319         struct irq_affinity desc = {
4320                 .pre_vectors = QLA_BASE_VECTORS,
4321         };
4322
4323         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4324             IS_ATIO_MSIX_CAPABLE(ha)) {
4325                 desc.pre_vectors++;
4326                 min_vecs++;
4327         }
4328
4329         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
4330                 /* user wants to control IRQ setting for target mode */
4331                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
4332                     min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4333                     PCI_IRQ_MSIX);
4334         } else
4335                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
4336                     min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4337                     PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
4338                     &desc);
4339
4340         if (ret < 0) {
4341                 ql_log(ql_log_fatal, vha, 0x00c7,
4342                     "MSI-X: Failed to enable support, "
4343                     "giving   up -- %d/%d.\n",
4344                     ha->msix_count, ret);
4345                 goto msix_out;
4346         } else if (ret < ha->msix_count) {
4347                 ql_log(ql_log_info, vha, 0x00c6,
4348                     "MSI-X: Using %d vectors\n", ret);
4349                 ha->msix_count = ret;
4350                 /* Recalculate queue values */
4351                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
4352                         ha->max_req_queues = ha->msix_count - 1;
4353
4354                         /* ATIOQ needs 1 vector. That's 1 less QPair */
4355                         if (QLA_TGT_MODE_ENABLED())
4356                                 ha->max_req_queues--;
4357
4358                         ha->max_rsp_queues = ha->max_req_queues;
4359
4360                         ha->max_qpairs = ha->max_req_queues - 1;
4361                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
4362                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
4363                 }
4364         }
4365         vha->irq_offset = desc.pre_vectors;
4366         ha->msix_entries = kcalloc(ha->msix_count,
4367                                    sizeof(struct qla_msix_entry),
4368                                    GFP_KERNEL);
4369         if (!ha->msix_entries) {
4370                 ql_log(ql_log_fatal, vha, 0x00c8,
4371                     "Failed to allocate memory for ha->msix_entries.\n");
4372                 ret = -ENOMEM;
4373                 goto free_irqs;
4374         }
4375         ha->flags.msix_enabled = 1;
4376
4377         for (i = 0; i < ha->msix_count; i++) {
4378                 qentry = &ha->msix_entries[i];
4379                 qentry->vector = pci_irq_vector(ha->pdev, i);
4380                 qentry->vector_base0 = i;
4381                 qentry->entry = i;
4382                 qentry->have_irq = 0;
4383                 qentry->in_use = 0;
4384                 qentry->handle = NULL;
4385         }
4386
4387         /* Enable MSI-X vectors for the base queue */
4388         for (i = 0; i < QLA_BASE_VECTORS; i++) {
4389                 qentry = &ha->msix_entries[i];
4390                 qentry->handle = rsp;
4391                 rsp->msix = qentry;
4392                 scnprintf(qentry->name, sizeof(qentry->name),
4393                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4394                 if (IS_P3P_TYPE(ha))
4395                         ret = request_irq(qentry->vector,
4396                                 qla82xx_msix_entries[i].handler,
4397                                 0, qla82xx_msix_entries[i].name, rsp);
4398                 else
4399                         ret = request_irq(qentry->vector,
4400                                 msix_entries[i].handler,
4401                                 0, qentry->name, rsp);
4402                 if (ret)
4403                         goto msix_register_fail;
4404                 qentry->have_irq = 1;
4405                 qentry->in_use = 1;
4406         }
4407
4408         /*
4409          * If target mode is enable, also request the vector for the ATIO
4410          * queue.
4411          */
4412         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4413             IS_ATIO_MSIX_CAPABLE(ha)) {
4414                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4415                 rsp->msix = qentry;
4416                 qentry->handle = rsp;
4417                 scnprintf(qentry->name, sizeof(qentry->name),
4418                     "qla2xxx%lu_%s", vha->host_no,
4419                     msix_entries[QLA_ATIO_VECTOR].name);
4420                 qentry->in_use = 1;
4421                 ret = request_irq(qentry->vector,
4422                         msix_entries[QLA_ATIO_VECTOR].handler,
4423                         0, qentry->name, rsp);
4424                 qentry->have_irq = 1;
4425         }
4426
4427 msix_register_fail:
4428         if (ret) {
4429                 ql_log(ql_log_fatal, vha, 0x00cb,
4430                     "MSI-X: unable to register handler -- %x/%d.\n",
4431                     qentry->vector, ret);
4432                 qla2x00_free_irqs(vha);
4433                 ha->mqenable = 0;
4434                 goto msix_out;
4435         }
4436
4437         /* Enable MSI-X vector for response queue update for queue 0 */
4438         if (IS_MQUE_CAPABLE(ha) &&
4439             (ha->msixbase && ha->mqiobase && ha->max_qpairs))
4440                 ha->mqenable = 1;
4441         else
4442                 ha->mqenable = 0;
4443
4444         ql_dbg(ql_dbg_multiq, vha, 0xc005,
4445             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4446             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4447         ql_dbg(ql_dbg_init, vha, 0x0055,
4448             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4449             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4450
4451 msix_out:
4452         return ret;
4453
4454 free_irqs:
4455         pci_free_irq_vectors(ha->pdev);
4456         goto msix_out;
4457 }
4458
4459 int
4460 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4461 {
4462         int ret = QLA_FUNCTION_FAILED;
4463         device_reg_t *reg = ha->iobase;
4464         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4465
4466         /* If possible, enable MSI-X. */
4467         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4468             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4469             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4470                 goto skip_msi;
4471
4472         if (ql2xenablemsix == 2)
4473                 goto skip_msix;
4474
4475         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4476                 (ha->pdev->subsystem_device == 0x7040 ||
4477                 ha->pdev->subsystem_device == 0x7041 ||
4478                 ha->pdev->subsystem_device == 0x1705)) {
4479                 ql_log(ql_log_warn, vha, 0x0034,
4480                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4481                         ha->pdev->subsystem_vendor,
4482                         ha->pdev->subsystem_device);
4483                 goto skip_msi;
4484         }
4485
4486         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4487                 ql_log(ql_log_warn, vha, 0x0035,
4488                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4489                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4490                 goto skip_msix;
4491         }
4492
4493         ret = qla24xx_enable_msix(ha, rsp);
4494         if (!ret) {
4495                 ql_dbg(ql_dbg_init, vha, 0x0036,
4496                     "MSI-X: Enabled (0x%X, 0x%X).\n",
4497                     ha->chip_revision, ha->fw_attributes);
4498                 goto clear_risc_ints;
4499         }
4500
4501 skip_msix:
4502
4503         ql_log(ql_log_info, vha, 0x0037,
4504             "Falling back-to MSI mode -- ret=%d.\n", ret);
4505
4506         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4507             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4508             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4509                 goto skip_msi;
4510
4511         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4512         if (ret > 0) {
4513                 ql_dbg(ql_dbg_init, vha, 0x0038,
4514                     "MSI: Enabled.\n");
4515                 ha->flags.msi_enabled = 1;
4516         } else
4517                 ql_log(ql_log_warn, vha, 0x0039,
4518                     "Falling back-to INTa mode -- ret=%d.\n", ret);
4519 skip_msi:
4520
4521         /* Skip INTx on ISP82xx. */
4522         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4523                 return QLA_FUNCTION_FAILED;
4524
4525         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4526             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4527             QLA2XXX_DRIVER_NAME, rsp);
4528         if (ret) {
4529                 ql_log(ql_log_warn, vha, 0x003a,
4530                     "Failed to reserve interrupt %d already in use.\n",
4531                     ha->pdev->irq);
4532                 goto fail;
4533         } else if (!ha->flags.msi_enabled) {
4534                 ql_dbg(ql_dbg_init, vha, 0x0125,
4535                     "INTa mode: Enabled.\n");
4536                 ha->flags.mr_intr_valid = 1;
4537                 /* Set max_qpair to 0, as MSI-X and MSI in not enabled */
4538                 ha->max_qpairs = 0;
4539         }
4540
4541 clear_risc_ints:
4542         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4543                 goto fail;
4544
4545         spin_lock_irq(&ha->hardware_lock);
4546         wrt_reg_word(&reg->isp.semaphore, 0);
4547         spin_unlock_irq(&ha->hardware_lock);
4548
4549 fail:
4550         return ret;
4551 }
4552
4553 void
4554 qla2x00_free_irqs(scsi_qla_host_t *vha)
4555 {
4556         struct qla_hw_data *ha = vha->hw;
4557         struct rsp_que *rsp;
4558         struct qla_msix_entry *qentry;
4559         int i;
4560
4561         /*
4562          * We need to check that ha->rsp_q_map is valid in case we are called
4563          * from a probe failure context.
4564          */
4565         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4566                 goto free_irqs;
4567         rsp = ha->rsp_q_map[0];
4568
4569         if (ha->flags.msix_enabled) {
4570                 for (i = 0; i < ha->msix_count; i++) {
4571                         qentry = &ha->msix_entries[i];
4572                         if (qentry->have_irq) {
4573                                 irq_set_affinity_notifier(qentry->vector, NULL);
4574                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4575                         }
4576                 }
4577                 kfree(ha->msix_entries);
4578                 ha->msix_entries = NULL;
4579                 ha->flags.msix_enabled = 0;
4580                 ql_dbg(ql_dbg_init, vha, 0x0042,
4581                         "Disabled MSI-X.\n");
4582         } else {
4583                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4584         }
4585
4586 free_irqs:
4587         pci_free_irq_vectors(ha->pdev);
4588 }
4589
4590 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4591         struct qla_msix_entry *msix, int vector_type)
4592 {
4593         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4594         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4595         int ret;
4596
4597         scnprintf(msix->name, sizeof(msix->name),
4598             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4599         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4600         if (ret) {
4601                 ql_log(ql_log_fatal, vha, 0x00e6,
4602                     "MSI-X: Unable to register handler -- %x/%d.\n",
4603                     msix->vector, ret);
4604                 return ret;
4605         }
4606         msix->have_irq = 1;
4607         msix->handle = qpair;
4608         qla_mapq_init_qp_cpu_map(ha, msix, qpair);
4609         return ret;
4610 }